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Friday, December 7, 2012

IV Trochlear nerve, Oculomotor nerve III, VI Abducens nerve: oculomotor nerve Oculomotor nerve

IV Trochlear nerve, Oculomotor nerve III, VI Abducens nerve:
  oculomotor nerve Oculomotor nerve
Consists of two parts:
And part Barracambthaway: (general visceral efferent) and this feeds muscle small surrounding slot pupil by narrowing the pupil, for example, if the light is strong on the eye constrictor pupillae, and nourish the ciliary muscle ciliary muscles which muscle small stick lens eye Vtzhbha or leave it to focus the image on the retina. Pupillary light and accomodation reflexes.Walking between nerve superior cerebellar artery and posterior cerebral artery, then clipped the outer membrane surrounding the brain dura near the back extrusion brushes posterior clinoid process and then travels forward in the side of the cavernous vein. Then gradually descends to the bottom to enter the eye socket across the bottom of the top notch visual. There is divided into upper and Branch basement.
trochlear nerve IV:
It is the fourth cranial nerve which is very high which wraps around the brain stem and pierces the membrane surrounding the brain behind the third-place nerve then walks into a vein cavernous third subneural. It runs (Dgra) forward enters the eye socket of the upper part of the top notch visual, to enter the upper edge of the upper oblique muscle. Fagve Supreme oblique muscle superior oblique muscle nerves and this muscle movement is one of six out of the eye muscles make eye move into different directions.(RatesCheck to this nerve in the picture at the bottom and is in the top of the picture).
abducent nerve VI:Rectus feeds Foreign Almsaalh eye movement to the side. It has a long march he comes out of the lower part of the pons any in the posterior cranial fossa then pierces the membrane surrounding the brain and then enters the cavernous vein here is located along the internal carotid artery and then enters the eye socket through the lower part of the upper visual aspect.





All these nerves related vein cavernous cavernous sinus.

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