Function?

Question 1

I

Answer 1

Smell

Question 2

II

Answer 2

vision

Question 3

III

Answer 3

dilation, constriction, levator palpebrae superioris muscle (elevate eyelid)

Question 4

IV

Answer 4

directs gaze down and outward (superior oblique)

Question 5

V

Answer 5

chewing, middle ear muscles, touch, pain, proprioception for facial muscles and tongue, mastication

sensation over face, scalp, nasal cavity, cornea

Question 6

VI

Answer 6

directs gaze laterally / abducts eyeball (lateral rectus)

Question 7

VII

Answer 7

Facial movements OTHER THAN tongue, eyes

FACIAL EXPRESSIONS

Taste anterior 2/3 of the tongue

tears, salvation, nasal secretion

Somatic: ear canal

Question 8

VIII

Answer 8

Hearing and balance

Question 9

IX

Answer 9

swallowing, (sensation) pharynx, external ear, carotid body (chemo/baroreceptors), salivary gland (parotid)

Posterior 1/3 of taste

Question 10

X

Answer 10

pharyngeal muscles- swallowing
laryngeal muscles- vocal cords (somatic)
parasympathetic nervous system “autonomic motor”
visceral organ sensation, pharynx and ext. ear
aortic baro/chemo receptors

Question 11

XI

Answer 11

sternocleidomastoid and trapezium (somatic)

Question 12

What CN is not really a true cranial nerve? why?

Answer 12

XI, the neuronal cell bodies are actually located in the cervical spinal cord

Question 13

XII

Answer 13

innervation of the tongue (somatic motor)

speech and swallowing