cranial nerve assessemt

Question 1

Smell

Answer 1

Olfactory CN I

Question 2

Vision

Answer 2

CN II – Optic (Sensory)

Question 3

Motor to four extraocular muscle; elevated eyelid; pupillary reactions

Answer 3

CN III – Oculomotor (Motor)

Question 4

Motor to superior oblique for downward, lateral of the EYE

Answer 4

CN IV – Trochlear (Motor)

Question 5

Sensory from surface of head n neck, sinuses, meninges, tympanic membranes.
Motor to muscle of mastication

Answer 5

CN V – Trigeminal (Both)

Question 6

Motor to lateral rectus for lateral deviation of the eye.

Answer 6

CN VI – Abducens (Motor)

Question 7

Motor to muscle of facial expression; parasympathetic supply to many glands of head; sensation around external ear; taste from 2/3 of tongue and palate; close eyelid and protective blinking.

Answer 7

CN VII – Facial (Both)

Question 8

Sense of balance and hearing

Answer 8

CN VIII – Vestibulocochlear (Sensory)

Question 9

Salvation; elevate pharynx during swallowing and speech taste from posterior 1/3 of tongue; monitor blood pressure.

Answer 9

CN IX – Glossopharyngeal (Both)

Question 10

Motor to pharynx; parasympathetic supply to thoracic and abdominal viscera; sensory from pharynx, larynx, trachea, bronchi and viscera.

Answer 10

CN X – Vagus (Both)

Question 11

Motor muscle of the tongue

Answer 11

CN XII –Hypoglossal (Motor)