Exam 1: Oculomotor

Question 1

Oculomotor carries both ___ and ___ fibers

Answer 1

Somatic

Parasympathetic

Question 2

Oculomotor muscle are somatic ____

Answer 2

Nuclei of origin

Question 3

Oculomotor nuclei located in

Answer 3

Periaquectal gray matter

Question 4

Oculomotor nuclei are

Answer 4

LMN

Question 5

What part of cerebral cortex sends axons to oculomotor nuclei

Answer 5

BM 8

Question 6

Oculomotor nuclei also receive fibers from

Answer 6

Superior colliculus and medial longitudinal fasciculus

Question 7

Axons travel anteriorly through ____ and exit CNS in ____

Answer 7

Red nucleus

Interpeduncular fossa

Question 8

When the nerves exit the CNS in the interpeduncular fossa, they are covered by

Answer 8

Epineurium

Question 9

Muscles supplied by superior ramus

Answer 9

Superior rectus

Levator palpebra Superioris

Question 10

Somatic pathway: nerves penetrate ___ and travel along cavernous sinus

Answer 10

Dura mater

Question 11

Once in eye socket, somatic pathway nerves split into

Answer 11

Superior and inferior rami

Question 12

Muscles supplied by Inferior ramus

Answer 12

Medial - medial rectus
Central - Inferior rectus
Lateral - Inferior oblique

Question 13

Accessory oculomotor nucleus contains

Answer 13

Preganglionic parasympathetic neurons

Question 14

Preganglionic Axons in parasympathetic pathway synapse in

Answer 14

Ciliary ganglion

Question 15

Postganglionic parasympathetic axons follow course of ___, pierce sclera, and travel along internal surface of sclera

Answer 15

Ciliary arteries

Question 16

Postganglionic parasympathetics supply

Answer 16

Ciliaris

Pupillary constrictor

Question 17

Somatic sensory fibers are carried by

Answer 17

Trigeminal nerve