Explain the benefits and functions of the pancreas, pancreas Pancreas in the human body

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Explain the benefits and functions of the pancreas, pancreas Pancreas in the human body


A smooth soft gland, internal secretion (deaf) and exocrine, exocrine it because it secretes digestive juices containing enzymes (enzymes) and metal salts, which are internal secretion (deaf: they secrete hormones insulin).

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The pancreas is located in the abdominal cavity at the level of the first lumbar vertebrae or the second, which is in a position deeper than the stomach, is located behind, with a length of about 15 cm, and weighs about 70 grams. It seems the outer surface is divided into small portions, and varies in diameter from one part to another, Vidrj of large head to tail changer. And is divided into four parts:


1 - head:

The largest part of the pancreas, a circular shape, is located inside the horseshoe duodenal and extends left back from blood mesenteric higher, higher than the inferior vena cava, and veins renal left and right, and often shows the effect of the latter part of the bile duct public.

2 - neck:

A narrower part of the pancreas, and connects the head of the pancreas and the body, and is located in front of the beginning of the portal vein, and the beginning of the superior mesenteric artery fork of the aorta.

3 - Body:

Which is the central part of the pancreas, is heading up the middle and the left, and appears triangular in cross-section.

4 - tail:

A narrow portion at the end of the gland, moving to the left, touching the navel (entrance) of the spleen.

 

 

 

 

 

 

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The microscopic structure of the Pancreas


Composed of several pancreatic Ovsas Lobes contain large numbers of alveoli Acini serous, secretory cell lining, and contains few channels for the transfer of cellular secretions. The Alavsas include gatherings Mobiles circular called "islets of Langerhans Langerhans" that appear pale yellowish, scattered and different sizes can have some size up to 4 times more than the size of the pancreatic vesiculitis, and contain cells two types of cells:

A - β beta cells that secrete the hormone insulin

B - alpha cells ά that secrete the hormone

Anatomical location and relationships
The pancreas is located in the abdominal cavity, directly behind the peritoneum (Birituan) back wall of the abdomen, and most of its parts are located in a higher level of the colon, which runs from right to left, among horseshoe duodenal right, to the navel spleen left, and bounded:
- From the front: from right to left: transverse colon, and a bag of yellow abdominal and stomach- From the back: It is right to left: bile duct, portal vein, splenic, and the lower vena cava, and navel spleen.
Secretory channels
Pancreas secretes digestive Asarth by primary and secondary channels, they combine with each other to form two channels: - the main channel and sub-channel.
A - the main channel:
Start from the guilt of the pancreas, and reflect gland pancreatic longitudinally, is moving towards the right, and receives while walking a large number of small channels, which is a tributary of the small supply channel original ulcer digestive, called channel Versng Wirsung, they are in the second part of the twelve after that combine with bile duct composed ampulla of Vater Vater, to the top of the nipple ethnic found such as Audi Oddi valve, which regulates the entry of succulents the twelve found, and have closed out the meals, and open during eating and digestion.
- Sub-channel:
The channel known as Santorini, transporting secretions from the head of the pancreas, and often Ttfagr with the main channel. Or pour independently above the mouth of the main channel
Circulatory

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Unquenchable pancreatic blood Boamalh splenic artery, and pancreatic arteries - Alafja Top and bottom, The veins are to accompany the arteries and pour in the session Baabism

Explain classification bones and functions and benefits in the human body

Explain classification bones and functions and benefits in the human body

 

Bone is divided into four categories: long, short, flat and irregular.
It is classified as three varieties:

- Axial Axial bones:
They that are the walls of the cavities in the body that are located within the members of a noble, whereupon the walls protection Mahtwayatea and guard against external influences, namely:
A - the bones of the spine, including the bones of the sacrum and coccyx
B - the bones of the skull and some bones associated
T - the lower jaw
W - ribs and sternum
 

- Bone growths Appendicular:
It is those bones that form the structure the outskirts of the body is working to connect and download muscle, contributing by helping them to perform their function, namely:
A - pelvic bones bottom is reached by the femur axial structure
B - the bones of the upper basin, reached the shoulder bones of the forearm bones
T - upper limb bones (humerus, shoulder), and lower limb bones (femur and hip)
W - the bones of the arm and leg bones
C - the bones of the hand and foot bones

- Bones sesame Sesamoids:
It is similar with sesame seeds, and there are some strings

 

Jobs bones

The bones many of the tasks necessary for the human body, the most important are:

- Play a role in bone protection, prevention and configured the solid walls of the cavities that contain noble members, such as the skull

- Earn body rigidity and durability

- Constitute hubs and install bone, whereupon crane function in the system of pulleys in the joints that create movements by muscle while joint implementation

- Form the Awamla of red blood cells

- Constitute reservoirs of metals and chlorine

 

Explain the benefits and functions of the spine Vertebral Column

Explain the benefits and functions of the spine Vertebral Column
Spinal column consists of 33 paragraph Vertebra, including: -• 7 cervical vertebrae• 12 paragraph waistcoat• 5 paragraphs cotton• 5 sacral vertebrae• 4 paragraphs Asasah
Paragraph consists of the body and the bow. And is positioned between each paragraphs disk (DSC) Disc. And runs along the spine Rabotttan Ligaments front and rear help to protect the spine during bending.
- Body of the paragraph:
Is a block bone short cylindrical, stick every body that which followed by a CD-thick between a third or five vertebral body, and consists disk of fibrous cartilage and mass centralized fabric Lin, and working these tablets to reduce the weight on the vertebral bodies, they also earn spine portability bending and movement.
- Arc paragraph:
Issued arch the back of the upper part of the body, and consists of two parts:First: short circular and moving back and called a stalk PedicleSecond: in the form of a plate called Lamina plate
Converge plate with the other plate Vićkl of Tlqaúha hole Foramen, and, following these holes on top of each other made up "spinal canal" that passes through the spinal cord.
While there is at the bottom of each stalk Click Notch, all in paragraphs above each other Akunan hole or Hole hole through which the nerves and blood vessels feeding the spinal cord.
The size of the hole varies from one point to another, Atsain, one "expansion cervical" and the second "expansion lumbar" where he graduated two large nerves destined for upper limbs and lower limbs.
It is known that the fetus is in the womb in a full flexion, and this leads to find Tqaran Elaine in front of one of them, such as the deficit and the other in the same deficit, then consists Tqaran Thanuyan Thdbama forward and two concavity lumbar and cervical concavity.
And the first two paragraphs are the properties of individual no definition to them.
- The first paragraph: الفقهة Atlas a cervical vertebrae first, carrying the skull, and has no body, but consists of two blocks Azmetin Janbatin are linked by arch front arc rear, each block has surface loft seat stationed upon the skull, and the bottom surface circular and flat يتمفصل with the surface like him of the second paragraph "axis" and on both sides there is bony protrusion associated strong link to be divided Atlas hole into two parts, small front and rear large.
- The second paragraph: Axis Axis have lace bony protrusion like a toothache is sharp, emanating from her body, which is in reality the body, which are separated from the Atlas and associated with the body of the second paragraph "axis". This introduces extrusion the Atlantic Vickl hole at the center allows them to move and tropical ring around it.

Explain the prostate, prostate gland and its benefits and functions

Explain the prostate, prostate gland and its benefits and functions

Prostate one of the members of a man's reproductive system, the gland that surrounds the first part of the ureter ureter, located inside the bladder bladder, rectum and the pubic bone successor imam, weighing 25 grams.

Prostate gland consists of two side lobes lobes at the back, and secondary lobes, one in the middle and the second behind the spermatic cord.

The size of the prostate gland when a natural person 3 cm long and 4 cm wide.

Increase in size with age. Until they become after sixty weak or three times its original size.

The function of the prostate gland secrete a milky fluid shape, during sex, a liquid alkaline reaction, contains phosphorous gain fat milky color, which works to reduce the viscosity of semen to facilitate the movement of sperm.

Nerve centers responsible for sexual stimulation and secretion of semen found in the spinal cord in the fourth lumbar vertebrae

Explain the anatomy of the liver and its benefits and functions

Explain the anatomy of the liver and its benefits and functions

 

The largest gland in the human body, is located in the upper-right side of the abdominal cavity, below the diaphragm, elliptical, weighs about 2000 grams, red in color gray, with a solid feel, though it is fragile, as quickly destroyed.

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For liver Stahan or two faces:
- Diaphragmatic convex tentacles of the diaphragm- Splanchnic Mnst heading down, right and forward
A - face phrenic
Convex shape, and covered mostly Besvaq abdomen (omentum) and it shows from the front impact impression Summit right and top left of the diaphragm, and there are also two subsidence place over central tendon and heart, as well as a profound impact to the left of the bottom of the gallbladder. The Association works sickle Falci form Ligament divided into two parts: the left and right.
B - surface Ashoa:
A flat or low concavity, بوجد the navel (entrance) of the liver the Porta Hepatis, and is located within the letter H, which consists of longitudinal grooves and occasional. The right end of the letter H is incomplete and consists of bitterness and the inferior vena cava, while the left side consists of the Association Madmlkp extensions (long) and venous Association. And expresses navel liver bile ducts right and left hepatic, and vascular (hepatic artery and hepatic vein). Works grooves Association Madmlkp (long) Teres Ligament Ligament Venosum venous Association to divide this surface into two lobes: left and right. And works letter H longitudinal grooves and horizontal split into four Ovsas:
1 - box lobe Quadrate Lobe and located in front of horizontal groove or groove, and between ASEAN gallbladder Madmlkp, and heading down Albirituan and janitor of the stomach.
2 - caudate lobe or lobe Spiegel Spigel, and is located behind the horizontal groove, and touches Albirituan adjacent to the diaphragm above the aortic valve, and in front of the thoracic aorta, and to the left of the inferior vena cava.
3 - the right lobe, and is located to the right of the groove (groove: longitudinal bitterness and right, and touches the back of the upper limb of the right college, and hepatic forward curvature of the colon
4 - left lobe: located on the left of the left longitudinal groove and sickle Association and appears on the front surface of the concavity effects on the stomach wall, and to the rear, there is a hump, and to the left of them leaves the esophagus sometimes Thelma lightly.
In practice is Alvassan box and Comet (Spiegel) two parts of the left lobe, where the liver becomes divided into two equal parts, namely: the right half and left half, where he found that blood done from the left hepatic artery, and Afrazachma pour in the left channel liver.

 

The liver consists of outside to inside:




1 - serous membrane called Gleeson Glisson solid portfolio and an Expansive, and when the secret liver degrades blood vessels and ducts.
2 - liver tissue, a rubbery texture, and there is no glandular areas, and the only areas that do not contain hepatic tissue, are members of the entrance to the liver
3 - the navel (entrance): contain cellular tissue - greasy, and the blood vessels and nerves and channels, which surrounded Baltherb (abdominal peritoneum)




Microscopic anatomy of the liver:

Composed liver Ovsas itself is composed of lobules small body 1 to 2 mm punctuated fabric Lovejoy, and does not contain very little of the connective tissue that are located where the blood vessels liver and bile ducts, and consists lobules of columns of large cells surrounded by blood, and there are between these retinal cells, special cells - epithelial cells called internal Kupfer Kupffer.
There in the lobules high channels along with liver cells where the combination of biliary fluid, and then unite with each other channels biggest problem at the edge of the lobules, lined fabric epithelial Emadi.
And hepatocellular flat in size from 15 - 20 microns, polygonal, with 6 - 8 draw, and flat faces are in contact with the capillaries twisted, and some of the cells be glued Balqanyat (small channels) bile, bile are called parties of the cell. And are deposited liver cells in the form of platelets with a single layer of cells, and each surface of the cell touches Rite bloody, and face touching channels Biliary, and platelet cell located in parallel, going towards the hepatic vein, above the liver, and separated platelets from each other Bsairat bloody crooked relate these capillaries human barriers on the one hand, and pureed from the other side.


Blood supply to the liver


Unquenchable liver blood from two sources, one arterial carries blood Maxda across the hepatic artery, which is divided into Harianin Qaibdian: left and right at the entrance to the liver. And the other carries venous blood through the portal vein venous which fork is the other hepatic vein and right hepatic vein left at the entrance to the liver, and this venous blood bearing nutrients that have been absorbed from the gastrointestinal tract to the the liver Bastqlabha. He notes the lack of communication between the vessels the right half and left half of the liver, and even within the same half of the liver, the arteries are end arteries do not follow its flight to another member.
And venous blood outside of the liver after reducing it comes out of the liver through the hepatic veins three flowing in the inferior vena cava, and notes here mixing and contact between the veins of the right and left liver. And Itasb sympathetic nerve and liver vagal (X).

 

Functions and benefits of Nucleus Kernel in the human body

Functions and benefits of Nucleus Kernel in the human body
Each cell has a nucleus there are one or more central cytoplasm, the nucleus differ in size, shape, and position of a cell to another, containing three elements:
A - atomic NucleulusIt is a set of threads minute with a circular shape. Not surrounded by a membrane, and swim center liquid nuclear.
Microkernel contains a large amount of RNA and therefore Tali a key role in the production Alrebozumat and thus regulate the production of proteins, and therefore dubbed (an officer causing cell) Pace - Maker Cell may nucleus contains more than one nucleus.
B - Alhbouapat control:Same shape and size is regular, a smaller microkernel exist only in developing cells is not divided in any stage of the break. And include chromosomes Chromosomes (chromosomes) with a filamentous form, which contains the genes Genes that determine heredity.

While there in the nucleolus of RNA, the nucleus contains DNA short Deoxy Ribo Nucleic Acid which estimated quantity of approximately five million divided among 23 gene pairs of chromosomes (46 chromosomes) and works the DAN to determine the quality of the chemical composition of thousands of yeast needed to provide energy necessary to determine the type of cell and provide them with the genetic model to work for the same exact copies of the form in order to pass on to their offspring of cells generated.

C - liquid nuclear:Consists of a protein has no form and fills the center of the nucleus, where swim where nuclear components, which plays an essential role in the creation of the ocean or the center right of the components of the nucleus and in the provision of the necessary nutrients.
D - nuclear envelope Nuclear Envelope:The cover consists of two layers of membranes varies in width between 10 - 30 nm, and contains slots and small holes.
The electron microscope that this case is connected at some points to the internal network in the cytoplasm.

Explanation The Cell anatomy of the human body and its benefits

Explanation The Cell anatomy of the human body and its benefits



Cell:




Is the primary unit in the structure of the body, are smaller cluster Live (Protoplasm) can survive alone, and have the ability to generate unparalleled, similar to corn for the article.

Thus the cell can be defined as a small block of living material (Protoplasm Protoplasm surrounded by plasma membrane in the middle of the nucleus.


Protoplasm:

Article colloidal Glutionus a complex interchangeable consistently contain 5% of the installed water, and include Cuadr inorganic salts are, for the most part made of organic materials are proteins, carbohydrates and fats.

Which, as we have with the strength of any slimy because it contains a large atoms drenched outstanding built from each small atoms.Characterized by large atoms from each other as the number of atoms in small type and how the union and therefore divided into three categories:

A - many sugars Polysaccharides
Consisting of a large number of atoms of pure non-specific, such as glycogen and many of them, such as mixed polysaccharide such as mucous acid Alheialorini.
And play an important role in the formation of immune involved in the manufacture of antibodies that latch onto with generators antibody within the body Kjerathim.
And built Alrasat generators that are used to differentiate between factions of the Union of bloody Many polysaccharide with proteins.

- Nucleic acids Nucleic Acids
A = acid Allaxgeni nuclear DNAB = acid Alraibouzay nuclear RNA

DNA consists of a meeting of the Cascade nucleotides, which consists of a phosphate group and ribose sugar of the type associated with the latter group of organic material basis Azoti a purine or Albermaidin.

There is the DNA within the chromosomes within the nucleus and that has to do with a large chromosomal inheritance is the active ingredient in the kernel functions and the Center Director of the actions of cellular phones.

The RNA is found in the nucleolus or cytoplasm of three types:R Alrebozumi and M and the carrier seeking T

C - proteins Protein

Built from atoms of specific large Union consists of a number of amino acids known by peptide bridges.

Cells differ from each other in sizes ranging from 7 - 40 microns, but there are cells such as micro cells and testicular cells are large, such as the egg cells in the ovary before ovulation are approximately 175 to 200 microns, and the cells vary in shape flat and the mismatch of cubic and cylindrical and prismatic and spherical and spindle and so on. The shape of the cell depends on several factors such as the middle and outer internal structure.

 

Cell functions and properties:


1 - cellular metabolism or development:Food is entering the cell to a series of changes referred to similar elements to build protoplast Vtendmj with completely, then the cell deliberately to sabotage some of its elements for capacity and the resulting waste posed by the cell, and these processes are called (assimilation and assimilation run counter) and called the chemical shifts that occur in the processes of assimilation and assimilation run counter name (metabolism)

2 - respiration and fermentation:The mean antioxidant nutrients inside the cell and result in the generation of thermal power, and when oxygen can not reach cells tend to generate power through the fermentation of carbohydrates, resulting in sour milk and carbonic acid and alcohol.

3 - secretion and unloading:Cells secrete organic substances such as hormones and saliva and yeast The unloading is waste disposal, such as emptying the urine.

4 - Absorption:Is the ability of cells to the introduction of elements or the decadent interior materials

5 - portability excitement:The most important characteristics of the cell, which is about the possibility of cell response when notified of Bmenbh physicist or chemist, and an exciting unit reaction, no matter alarm clock, for example, (contraction of white blood cells when exposed to light or electricity or trauma)

6 - Portability:Is the ability of the cell transfer of the alarm incident where it occurs to another place, this property appears clearly in the nerve cells.

7 - Movement:Of the cell are two types of movement: the internal movements of molecules living and non-living kernel and microkernel and dendrite and Alahdab and whips, and the Movement for Foreign Affairs of the cell to change its place, such as the movement of sperm (sperm) and eggs.


Parts of the cell:


Cell consists of the following parts:

1 - membrane:Membrane is still a wide field of modern scientific research which is a membrane surrounding inner cell Bedeiat, and a thickness of about 100 A ° Engstrom and due form the cell surface is a dynamic between the cell and the outer perimeter.


The membrane is composed of fats and proteins that can be related either singly or in both the amount of carbohydrates Carbohydrates Although Livni membrane components but in case of renewed constantly, and there are three types of membranes on protein composition in the home are:


- Myelin and myelin found in the nervous system and contains 75% fat and 5% sugars and 20% protein.- Plasma membrane is composed of 50% fat and 50% protein as well as the red blood cell membrane is composed of 43% fat and 49% protein and 8% sugars.

 

- Cytoplasm (Alsitoblazema) Cytoplasma:
If the membrane directs traffic to and from inside the cell, the cytoplasm is also the bulk of the cell, and installed in different cells different Aloaúv as it is not in harmony in any cell, it contains a variety of particles are:


A - mitochondria MitochondrionIn the form of a stick length 3 - 4 microns, and the cell contains thousands of granules, mitochondria have emerged under the electron microscope in the form of a vesicle filled with fluid, and mucous membrane surrounding the binary thick wall of about 180 angstroms.
And are within the mitochondria antioxidant nutrients, for example, are converted sugars Pysuvic Acid outside Almetukondria, but antioxidants Pysuvic Acid and amino acids and fatty acids are within the means of mitochondria.
As it is stored energy from the ATP (Adenosin Tri Phosphats) in the inner membrane of mitochondria, the ATP used in work vehicles and cellular transport of materials and shrink, and so, therefore, it is not surprising that given to the mitochondria (energy) of the cell.
B - Lysosomes Lysosomes:
They are oval or other forms of regular and frequent, especially in white blood cells and macrophages, and is filled with active Allizzouzomat Boukmair can analyze proteins and RNA components of genetics and DAN and sugars seems to work is the basic analysis or dilution, they contain active enzymes can analyze complex chemical compounds to The simplest ones, wherein is the process of digestion, and is working on an analysis of some components of the cell, such as mitochondria and the internal network, they can also work on the analysis of the same cell, and secrete enzymes that effective work on the analysis or dissolve the cell membrane and this may have seemed a serious matter, but it is very useful in some cases, and so when it is not necessary to replace old cells new cells, and this serious situation with a portfolio of suicide.The increase in vitamin A hurts connective tissue due to its effect on membrane Allizzouzom, while the hormone cortisone Cortisone works to strengthen and stabilize membranes Allizzouzomat.
C - the Golgi apparatus Golgi Apparatus:
Is a body near the retinal internal soft, has been named after the Italian discovered a Camillo Golgi and appears under the microscope in the form of the dark color in the cytoplasm, but under the electron microscope appears in the form of groups of flat gaps that relate to the retina internal soft by number vesicles containing secretory granules, and differs in appearance from one cell to another, and usually takes the Golgi apparatus one of the parties to the nucleus, and surface Vjuath (upper) and circular swollen, the lower Vmenbstp, soft and dual membrane wall.
It seems that the primary function of this device is the secretion and production of materials inside the cell, and because of the presence of granular glands attached to it, and it may be a secretory function and as high as in the Goblet cell in the intestine and blueberry Acinar cell in the pancreas.
Has been confirmed by imaging this post articles, Color Vifraz whole cell is Jellicoe Glyco protein Glyco - Protein Protein united with sugar and then leave the cell. Thus, the Golgi apparatus is a compulsory passage for all materials produced by the cell. This is done by unloading vesicles hyphen between the device and the cell surface. Thus, we can summarize the Golgi apparatus function as an addition of proteins and sugars composition of the final composite, and then put this compound outside the cell via vesicles with the hyphen surface.
D - internal network (endoplasmic reticulum) Endoplasmic Reticulum:
It is a pipeline and vesicles are central cytoplasm, and membrane thickness of about 50 angstrom and there in the middle of a narrow central expanse called pelvic Cisterna and these vesicles directly connected with the cell surface, and connected with each other by the pelvis. Membrane and membrane connected to the nucleus, and is located on the membrane rich granules ribonucleic acid Ribonucleic Acid called Alrebozumat. And are making these ribosomes methods of core and you are making the proteins, due to be Ribozzomat on the retina called the latter the name of coarse grid and basic function of Cbugephi separation (isolation) and transport proteins created by Alribozmomat, and most of these proteins are not made to the need of the same cell, but are for the outer secretion , and some of these proteins include the digestive enzymes and hormones. Thus network shall be considered an internal transfer of work to facilitate the movement of materials from one side to the other inside the cell, and notes that the retina related to the membrane nucleus through holes in this membrane allows the passage of material from the nucleus to the cytoplasm and vice versa, there are some reticulocytes internal soft (endoplasmic reticulum soft) Smooth Endoplasmic Reticulum They are not related to the retina coarse form of tubes and channels, rather than flat and believes that this network is making fat and steroid hormones Steroids.
E - Alribozum or ribosomes Ribsome:
It is a granular texture of coarse grid linear shape, and ranging in size from 100 - 200 angstroms and adhering to inner surface of the cytoplasmic membrane or on the surface of the retina internal coarse was named after (Ribozum) because it consists of the Federation acid Rebonclaiak with protein Ribonucleic (RNA) + Protein and there are small quantities free in the cytoplasm and mitochondria (mitochondria) and a number of these ribosomes in the cell a few thousand, and they play an important role in the manufacture and production of proteins that constitute the cell secretions.
And - the central body Centrosome:
As the name indicates, it is located in the center of the cell, particularly in the Golgi apparatus or Golgi complex, which consists of two are Centrioles cells in a this particle shape resembles Asitoanh open strings surrounded by nine longitudinal long clustered in three groups play a key role during the process of division mitotic - Membrane of mitochondria, which contains 5% protein.

 

Explain the anatomy of the penis, a member of the male Penis (penile)

Explain the anatomy of the penis, a member of the male Penis (penile)

Penis a member reproductive system when the man male *** ual organ, located in the lower part of the bottom, and includes part rear, which is the root root of penis, and part Front, a penis real shaft (body of penis), and the ends of the Imam (b glans ), which is available in the middle rectangular slot, which is to reach the urethra.
Penis consists of spongy body spongy body, a body erectile Ohz body surrounds the urethra Urethra an internal channel that works Kmejry Paul then become common for urine and semen.


Surrounds spongiform body which forms the back of the bulge called an onion and forward gland swelling is another. The average length of between 12 - 14 cm.
Surrounds the body objects cavernous which is about cylinders cylinders stretch of branches bone Ani until gland.
Linked to other elements of the male reproductive system include penile urethra and foreskin Foreskin and glans penis glans of penis.
Lashes foreskin covering the head of the penis and protects
Glans penis bulge conical located at the top of the penis. And when men are not circumcised, the glans surrounded  outstanding penis neck.

When they reach the age of three years ago, becoming the foreskin is usually subject to bounce back so that the tip of the penis can be detected, which until that time be connected . The soles of the foreskin is covered sebaceous glands secrete material smegma smegma a substance should be removed continuously by carefully cleaning the penis and irregular
Penis contains nerve endings sensitive to touch, pressure, and temperature



Glans penis are more sensitive of the body of the penis
And other areas most sensitive there the coronal ridge coronary edge that separates the head from the body, and also when the small triangular area on the underside of the penis
During sexual excitement filled with blood vessels in the spongy tissue with blood Vtantfaj, flies penis from sagging to sclerosis and this so-called erectile dysfunction erection



Semen contains millions of sperm semen. The only one of these sperm will be able to penetrate and enrich a woman's egg egg, and as a result gets pregnant pregnancy
The shape of the penis in terms of color and size has nothing to do with a person's physical structure
Many believed that the penis long and large size is the best and satisfactory to women's sexual desire, but in fact that the physiological impact of Qatar little penis for women, because the vagina gradually adjusts to fit with the perimeter of the penis.The length of the penis is not important, because the first third of the vagina is filled with nerve endings that respond to natural stimulation. If it myself and negative at the same time. What is important is performed for the job and his ability to keep an erection during sexual contact.

Testicular interest in organizing the process of forming sperm in the human body

Testicular interest in organizing the process of forming sperm in the human body
The prompter hormone interstitial cells ICSH raises androgen in the testis, which keeps the process of forming sperm. But maintaining full forming process is done by the the prompter pod hormone FSH hormone prompter interstitial cells ICSH Together.
The process requires a temperature below body temperature, and are secured by the scrotum, which range from a temperature between 34 - 35 ˚ C, hence the presence of the testicles inside the abdomen, which is called testicular migrans lead to degeneration seminiferous tubules and its inability to form sperm which leads to sterility and a testis one , and stay second in the scrotum is sufficient for the formation of a number of sperm be enough for the vaccine.
Sperm die at a temperature of 42 ˚ C and stop the process of forming sperm during fever.
Be sperm after configured static immobility where, after their arrival to the epididymis and her stay for 18 hours to become immobile and the fertilization of the egg, and this is known as mature Maturation, which not only move in the middle of weak acidity, degree Hodth 6 - 6.5. But we know that vaginal secretions degree Hodtha high Val PH ranges from 3.5 - 4, and here comes the role of prostate secretions that are in Alguentah flush, working to reduce the acidity of the vagina, the semen shall go out and acidity or pH him equal to 7.5. The sperm can live in the canals when the man several weeks, but after ejection The maximum life span is 72 hours, and if frozen to -100 ˚ C it can life for a year.

The amount of fluid projectile at a time ranging from 2 - 4 cm ³, and every one cm ³ contains 100 million sperm, and if the number of sperm per cubic centimeter and one it would be unable to fertilization, and is considered sterile Sterile.
Move within the female reproductive system at 3 mm per minute, and 80% of them moving when ejaculation and 60% after three hours.

Explain the anatomy of the testis Testis

Explain the anatomy of the testis Testis

The first member of reproduction at the man, and no _khasatan when the man, located each on one side of the scrotum, and oval-like shape so that the eyeball, which is highly sensitive

Internal structure of the testis
Notes that the surface of the testis rear associated pole upper culvert, and extends from the inside testicular extensions fibrous complex up to albuginea, divided testicular to about 400 gap each containing tubes twist chair or more, along the tube about two feet two, positioned between albuginea and barriers fibroblasts under kind of pressure.
After a distance of 2 feet unite all tubes together to form a tube straight one, then Ttfagr these tubules among them the problem of network pipe Mtfagrh, known as network testis, and then unite all 6 to 12 tube of this network constitute channel tanker Efferent Duct, the number of channels formed between 15 - 20 channel interference to the beginning of the epididymis, and thus linked to all testicular lobules Balbrbouk by these tubes.

Microscopic anatomy of the testis Microscopic Anatomy
Seems fibrous tissue tunic white thick, and barriers and extensions fibrous divided testis into small pieces known as Alavsas Lobes and these in turn are divided into lobules Lobules, showing the seminiferous tubules twisted, each tube is composed of several layers of cells that are difficult to distinguish types accurately, as it appears inside lackeys Spermatids.

The cells appear testis supportive, and special cells known as cells Idg or ledge Lydig that secrete the hormone androgen known as testosterone Testosterone, and sperm cells that you configure sperm (sperm), the cells base called cells generating sperm Spermatogonia, divided into sperm cells initial Primary Spermatocytes, turn Meiosis Meiosis secondary to sperm cells contain half the number of chromosomes in the human. Then mature cells and turn sperm mature (sperm) and so that migrate nucleus to one end of the cell sperm secondary, which is the head, then narrowing and تستطيل cytoplasm (cytoplasm) to form a sin, and called then counterfoil Alntafah Spermatids, and when it enters into seminiferous tubules and remain there are objects separate called sperm Spermatozoa
And also show striking cases surrounding Bal_khasip the inside out:




- Albuginea Tunica Albuginea
Looks dense fibers when testicular pole and the mass of fibrous body called Hijmor Highmore him out extensions that divides the testis into lobules
- Class vaginalis VaginalisA membrane chapel located within fascia sperm, which covers aspects: the front and East side of the testicle, and consists of two sheets thin one internal cytoplasmic, and the second external mural hand lobe, and their gap-existent, which is infested by b Hydrocele Hydrocele where filled the gap bad fluid


- The fibrous layer of the deep:Consisting of transverse fascia and form a bag containing the spermatic cord and testicular, which starts from the internal crural slot, and connected at the lower pole of the testis scrotal Association


- The outstanding class CremasterIt consists of small oblique muscle




- The fibrous layer surface or peritonitisIt is a continuation of the large oblique muscle


- Layer Alselloseh under skin:It is a continuation of the tissue under the skin of the perineum


- Skinning (fibrous layer of the scrotum) DartosIts reddish color, is subject to constriction, a genuine leather muscle


- The skin of the scrotum:

Thin, rubber, colored, highly sensitive, and in the middle of long outcrop represents a docking place and scrotum papers which Tbkien separate when women constitute the labia majora

- Seminal vesicles:
Testis secrete semen to the outside via a pipeline and seminal channels are:
A - straight pipe:It microtubules in testicular Ovsas, which tubes or more per lobule
- Network testis Rete TestisA tangled pipes, consisted of straight pipe when union body Hijmor Highmore

C - epididymis EpididymisSteel tube located behind the testicle, is separated from the testicular furrow padded internal visceral class class vaginalis and named this groove pocket epididymis. They often twisted spiral shape, so that the in situ length of 5 cm, but real long since attracted up to six meters. And have three parts: a circular head and body triangle, and a thin tail.


D - the vas deferens Vas DefferensThin tube can touch finger from the top of the scrotum movement of sperm from the epididymis to the urethra, its thick muscular wall, Vicsabha rigidity, which is very narrow and very long, with a diameter of 2 mm and a length of up to 40 cm, can accommodate at the end made up ampoule.
Start from the guilt the epididymis and going through the scrotum فالقناة crural Valhod where it ends at the base of the prostate بإتحادها with seminal vesicle to be together channel bombers.
Begins her rise rear end upper testicle and then heading towards the canal crural within the spermatic cord Vtabrha diagonally down and forward and inside, and after passing the slot crural interior up to the area beneath omentum as the Bgrus or Bgros Bogros and here separated from the spermatic cord, which tracks walking on muscle Al_khasria Psoas , and pass is the area known as Rtseos between pelvic wall from the outside or the peritoneum The Secret - vescico of interior, and high omentum, and intersect with the umbilical artery on the side wall of the bladder. And up to peritonitis prostate - issued by the omentum diverticulum Douglas or Douglas Douglas, and pose with the vas deferens from the other side triangle with its base in the prostate is located between Ahoislten Alntin, where widening unite end (ampoule) with seminal vesicle Vtkon channel bombers


E - seminal vesicle Seminal VesiclesA reservoir of sperm, and two Hoisltan on each side ampoule vas deferens, shape elongated, and diameter غبر fixed, size 5 * 1.5 * 0.5 cm, and has three parts are the neck and the body and the bottom, and secrete semen, which is located between the following members:
1 - from the front surface of the rear bottom of the bladder, and the back straight
2 - ampoule inside the vas deferens, and abroad braids veins sperm
3 - from the bottom of the prostate, and the Supreme Douglas diverticulum


- Channel flush Ejaculator CanalUnion consists of ampulla of the vas deferens and seminal vesicle neck, two channels unsurpassed within the prostate, 2.5 cm in length, and pour semen bearing sperm in the prostatic urethra about prostate Alayibh Prostatic Utricle

 

 

 

 

Testicular functions:




The testicular two important functions:

1 - making sperm (sperm)

2 - secretion of testosterone


- The formation of sperm Spermatogenesis

Begins with the formation of sperm in all seminiferous tubules, during adulthood, and will last a lifetime.

And are formed with emotion of Exhorter hormone the pod FSH, and after manufacture are stored in the vas deferens to get the nutrients and get rid of carbon dioxide resulting from the metabolism.

And contain seminal vesicle on the amount of fructose and Alainoctol Inositol and amino acids and prostaglandin Prostaglandin and fibrinogen, and the vesicle empties all these contents moment ejaculation seminal at the end of sexual intercourse sexual within the channel flush or bomber, after the channel carrier (vas deferens) may emptied Ntaffha, which increases the size of the projectile semen, sperm and feed on fructose, then prostate secrete a milky fluid transparent base interaction, contains vitamin C, 12 and calcium, worked to reduce the viscosity of semen