Anatomy

Question 1

Cranial Nerves

CN I

Answer 1

olfactory n.: SS smell

Question 2

Cranial Nerves

CN II

Answer 2

optic n.: SS vision

Question 3

Cranial Nerves

CN III

Answer 3

occulomotor n.- 5 eye muscles, parasymp pathway for pupil constriction

Question 4

Cranial Nerves

CN IV

Answer 4

trochlear: 1 eye muscle

Question 5

Cranial Nerves

CN V

Answer 5

Trigeminal n.- SA nerves to face, anterior 2/3 tongue and SE for mastication

Question 6

Cranial Nerves

CN VI

Answer 6

abducens n.: 1 eye muscle

Question 7

Cranial Nerves

CN VII

Answer 7

facial n.- muscles of facial expression, SS taste for anterior 2/3 of tongue, various glands including tears

Question 8

Cranial Nerves

CN VIII

Answer 8

vestibulocochlear n.- SS hearing and balance

Question 9

Cranial Nerves

CN IX

Answer 9

glossopharyngeal n.- 1 pharyngeal muscle parasymp pathway for 1 salivary gland, oropharynx mucus glands special sense of taste to posterior 1/3rd tongue blood gas & blood pressure level monitoring “gag reflex” (sensory arm) general sensation to oropharynx

Question 10

Cranial Nerves

CN X

Answer 10

vagus n.- pharyngeal, laryngeal, and soft palate muscles, parasymp pathway to laryngeal & laryngopharynx mucus glands, thorax & abdomen special sense of taste (on root of tongue) “gag reflex” (motor arm) general sensation to laryngopharynx

Question 11

Cranial Nerves

CN XI

Answer 11

accessory n.-2 shoulder & neck muscles (trapezius & SCM/sternocleidomastoid)

Question 12

Cranial Nerves

CN XII

Answer 12

hypoglossal n.- tongue muscles