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Thursday, December 13, 2012

Explanation of the anatomy of the eye process

Explanation of the anatomy of the eye process
Consists eye (eye ball) of three layers and is from the outside to the inside:

Solid Sclera, and is the outer layer of the eye and consists of connective tissue strong opaque eye protection, hard not absorb light, but a customer and a white. Damage most solid eyeball only the front part which is the transparent cornea.
Choroid Choroid, and is the layer that lies between the solid eye and the retina, and choroid contain a rich network of blood vessels and its primary function is to support the retina and provide food and oxygen. Choroid cover only two-thirds of the eye ball back.
Retina Retina, and is the inner layer of the eye and cover two-thirds of the eye ball inside the back. The retina is the layer that contains photoreceptors Photoreceptors and responsible for sight, where it receives light actually them and converted to electrical signals transmitted through fiber optical fibers, which accumulate in the optical disk Optic Disc or which also called spot blind (where the optical disk does not contains photoreceptors) to form the optic nerve. containing retinal fovea Fovea is a concave spot in the retina contain large amounts of photoreceptors and used the sharp eye of sight, any eye that circumvents the light is located on this spot.



Eyeball vitreous Viterous Body and is a transparent gelatinous body preserve Kroetha. Related forward ciliary body Ciliary Body and is a control muscles in the form of the lens of the eye so that if shrunk less curvature of the lens and if his vice over convex lens and this process that focuses light on the retina of vision by the body from the eye.Front lens of the eye is the iris Iris and that gives the eye color, and consists iris muscles of circular muscles radial and in the middle aperture called the pupil (iris) Pupil, muscle circular narrowing the pupil and radial expansion pupil by the amount of light, In the dark expands pupil to allow for a greater amount of light enter the eye to facilitate the vision, and when the light is shining Atadhaq pupil to be a clear vision and are not confused.After the iris and in front of the eye are the cornea Cornea and is transparent and does not contain blood vessels where they take what you need oxygen directly from the air and food by filtration of aqueous humor Aqueous Humour, and is the solution that fills the front room and the back room. Front room Anterior Chamber is actually space between the cornea and iris and Algervaih background Posterior Chamber is the reality gap between the lens of the eye and the iris. Aqueous humor fills these chambers and Aterchma through Schlemm's canal Schlemm Canal which lies in the angle between the cornea and iris in the front room. Aqueous humor is responsible for eye pressure Intraocular Pressure, If, and could not get out for some reason can lead to high eye pressure and disease known blue water Glaucoma


System lacrimal Lacrimal Apparatus consists of lacrimal gland Lacrimal Gland which is located in the upper front outer stone eye and pour tears through channels lacrimal on conjunctivitis Conjunctiva and then transmitted tears to the corner of the eye's internal travel through canaliculi lacrimal Lacrimal Canaliculi to the lacrimal sac Lacrimal Sac and whichlocked up the tears that come down at once to the nasal cavity. Then transmitted through the nasolacrimal duct Nasolacrimal Duct pour into the nasal cavity through the slot in the lower nasal fovea


The muscles that move the eye are:


Lateral rectus muscle (side) Lateral Rectus Muscle and eye damage to the outside of any consideration to the outer side (by the eye).
Rectus medial (internal) Medial Rectus Muscle and eye damage to the interior to look towards the nose.
Superior rectus muscle Superior Rectus Muscle and eye damage to look up and to the inside.
Inferior rectus muscle Inferior Rectus Muscle and eye damage to look down and to the inside.
Superior oblique muscle Superior Oblique Muscle and eye damage to look down and to the outside.
Inferior oblique muscle Inferior Oblique Muscle and eye damage to look up and out.


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