Introduction to Cranial Nerves

Question 1

CNI

Answer 1

Olfactory

Question 2

CNII

Answer 2

Optic

Question 3

CNIII

Answer 3

Oculomotor

Question 4

CNIV

Answer 4

Trochlear

Question 5

CNV

Answer 5

Trigeminal

Question 6

CNVI

Answer 6

Abducens

Question 7

CNVII

Answer 7

Facial

Question 8

CNVIII

Answer 8

Vestibulocochlear

Question 9

CNIX

Answer 9

Glossopharyngeal

Question 10

CNX

Answer 10

Vagus

Question 11

CNXI

Answer 11

Accessory (or spinal accessory)

Question 12

CNXII

Answer 12

Hypoglossal

Question 13

Sensory/afferent only CNS

Answer 13

I, II, VIII

Question 14

Somatic motor only (skeletal muscle innervation)

Answer 14

III, IV, VI, XI, XII

Question 15

Mixed nerves (that arise from the branchial arches, both blue and red)

Answer 15

V, VII, IX, X

Question 16

No cranial nerves contain _______ fibers.

Answer 16

Sympathetic

Question 17

Somatic efferents are a ____ neuron system with cell bodies that live in the ________.

Answer 17

1, CNS (brainstem)

Question 18

Parasympathetic efferents are a _____ neuron chain with two clusters of cell bodies, the first in the ______, and the second in the ________.

Answer 18

2, CNS (brainstem), ganglion near the organs innervated

Question 19

Four cranial nerves associated with the embryonic branchial arches

Answer 19

V, VII, IX, and X