Crainial Nerves

Question 1

CN I

Answer 1

Olfactory

Olfactory bulb and tract

Question 2

CN II

Answer 2

Optic

Snellen eye test

Eyes—optic nerve—optic chiasm—optic tract—visual cortex

Question 3

CN III

Answer 3

Oculomotor

Constriction of pupil.

Inferior oblique, superior rectus,

Question 4

CN V

Answer 4

Trigeminal

Three branches

1. V1 ophthalmic
2. V2 Maxillary
3. V3 mandibular

Sensation of face and deals with motor of muscles of mastication

Touching with gauze to see if they can feel

Question 5

CN VI

Answer 5

Abducent

Lateral rectus

Question 6

CN VII

Answer 6

Facial

Motor component of facial expression

Anterior 2/3 of taste

Text by making them make funny faces

Question 7

CN VIII

Answer 7

Vestibulocochlear

Vestibular =equilibrium (balance)
Cochleae=hearing

Question 8

CN IX

Answer 8

Glossopharyngeal

Taste of posterior 1/3 of tongue

Question 9

CN X

Answer 9

Vagus

Question 10

CN XI

Answer 10

Spinal accessory motor

Comes off spinal cord

Sternocleidomastoid and trapezius

To test: (have them raise shoulders and rotate head)

Question 11

CN XII

Answer 11

Hypoglossal

Moves the tongue
To test have patient move tongue

Question 12

CN IV

Answer 12

Trochlear

Superior obliques