occulomotor nerve

Question 1

what does occulomoter nerve supply?

Answer 1

• extrinsic muscles of the eye

* except the lateral rectus, superior oblique muscle.

Question 2

what type of fibers does the occulomoter nerve have, and to what ganglion which inervates what?

Answer 2

conveys parasympathetic fibers to the ciliary ggl for innervation of the ciliary muscles and sphincter papillae

Question 3

the nuclei of the occulomoter nerve

Answer 3

• accessory occulomoter nuclei

- occulomoter nucleus

Question 4

where is the accessory occulomoter nuclei found and function

Answer 4

• midbrain

- parasympathetic, general viscero motor

Question 5

where is occulomoter nuclues found and function

Answer 5

• upper part of midbrain level of superior colliculus

- somatomotor

Question 6

brain exit of occulomoter nerve

Answer 6

-occulomotor sulcus in the interpeduncular fossa between superior and posterior cerebral artery

Question 7

subarachnoida course of occulomoter nerve

Answer 7

interpeduncular cistern

Question 8

dura penetration of occulomoter nerve

Answer 8

cavernous sinus lateral wall

Question 9

skull exit of occulomoter nerve

Answer 9

superior orbital fissure

Question 10

pathway of occulomoter nerve

Answer 10

• medial section of SOF
• divides into 2 main branches between the 2 heads of the lateral rectus muscle
• below TROCHLEAR,FRONTAL, and LACRIMAL branches of the OPTHALMIC NERVE

Question 11

branches of the occulomoter nerve

Answer 11

• superior branch of occulomoter nerve

- inferior branch of occulomoter nerve

Question 12

supply of the superior branch of occulomoter nerve

Answer 12

• the (smaller) branch

- gives branches to Superior rectus, and levator palpebrae superior muscle

Question 13

supply of the inferior branch of occulomoter nerve

Answer 13

-the (larger) branch
supplies the
-medial rectus muscle *under optic nerve
-inferior rectus muscle
-inferior oblique muscle