Cranial Nerve Components

Question 1

CN 1 – Name and Components

Answer 1

Olfactory Nerve. SVA.

Question 2

CN 2 – Name and Components

Answer 2

Optic Nerve. SSA.

Question 3

CN 3 – Name and Components

Answer 3

Oculomotor. GSE, GVE.

Question 4

CN 4 – Name and Components

Answer 4

Trochlear. GSE.

Question 5

CN 5 – Name and Components

Answer 5

Trigeminal. GSA, SVE.

Question 6

CN 6 – Name and Components

Answer 6

Abducent. GSE.

Question 7

CN 7 – Name and Components

Answer 7

Facial. SVA, SVE, GVE, GSA.

Question 8

Give an example of each functional component of 7.

Answer 8

SVA – Taste to anterior 2/3 of tongue
GVE – PS fibers via greater petrosal
SVE – Muscles of Expression/Stapedius
GSA – Concha of Auricle.

Question 9

CN 9 – Name and Components

Answer 9

Glossopharyngeal. SVA, SVE, GVA, GVE, GSA

Question 10

Give an example of each functional component of CN 9

Answer 10

GSA -- Tympanic Nerve, Carotid Sinus Nerve
SVA -- Taste on Post 1/3 Tongue
GVA -- Sensory on Posterior 1/3 Tongue
SVE -- Stylopharyngeous
GVE -- PS/Lesser Petrosal

Question 11

CN 8 – Name and Components

Answer 11

Vestibulocochlear. SSA.

Question 12

CN 10 – Name and Components

Answer 12

Vagus. GSA, SVA, GVA, SSE, GVE.

Question 13

Give an example of each functional component of CN 10

Answer 13

GSA -- Inf. Pharynx and Larynx
SVA -- Taste at Root of Tongue
GVA -- Sensation at root of tongue
SSE -- Soft Palate, Pharynx, Laryngeal Muscles, Palatoglossus
GVE -- PS to thoracic and abdomen

Question 14

CN 11 – Name and Components

Answer 14

Spinal Accessory Nerve. GSE.

Question 15

CN 12 – Name and Components

Answer 15

Hypoglossal. GSE.