17 - Cranial Nerves 1

Question 1

Cranial nerves that supply visceral sensory and motor innervation to neck, chest and abdomen

Answer 1

IX and X

Question 2

Parts of head innervated by cranial nerves

Answer 2

Anterior half.

Posterior half innervated by a spinal nerve.

Question 3

CNI

Answer 3

Olfactory

Question 4

CNII

Answer 4

Optic

Question 5

CNIII

Answer 5

Ocularmotor

Question 6

CNIV

Answer 6

Trochlear

Question 7

CNV

Answer 7

Trigeminal (sensation of the face)

Question 8

CNVI

Answer 8

Abducent (eye movement)

Question 9

CNVII

Answer 9

Facial (facial muscles)

Question 10

CNVIII

Answer 10

Vestibulocochlear (hearing, balance)

Question 11

CNIX

Answer 11

Glossopharyngeal (sensation to the glossus)

Question 12

CNX

Answer 12

Vagus

Question 13

CNXI

Answer 13

Accessory

Question 14

CNXIII

Answer 14

Hypoglossal (tongue)

Question 15

Purely sensory cranial nerves

Answer 15

I, II, VIII

Question 16

Purely motor cranial nerves (innervate skeletal muscle)

Answer 16

III, IV, VI, XI, XII

III, IV, VI are for eye movement

Question 17

Mixed cranial nerves

Answer 17

V, VII, IX, X

Question 18

Roles of the trigeminal nerve

Answer 18

Sensation of the face.

Motor component of chewing.

Question 19

Where do cranial nerves centrally attach to?

Answer 19

Cranial nerve nuclei.

Question 20

Locations of cranial nerve nuclei III to XII

Answer 20

Brainstem

Question 21

*Cranial nerve locations

Answer 21

CRANIAL NERVES

Question 22

Three columns of motor cranial nerves

Answer 22

Somatic, brachial and visceral (autonomic)

Question 23

Brachial column of motor cranial nerves

Answer 23

Innervate skeletal muscle derived from brachial arches in development.

Question 24

Nucleus ambiguus

Answer 24

Mostly a motor nucleus.
Lies behind inferior olive of medulla.
Contains nuclei of CNIX and X

Question 25

Cranial nerves that innervate visceral smooth muscle

Answer 25

III, VII, IX, X

Question 26

Viscera nucleus of CNIII

Answer 26

Edinger-Westphal nucleus

Question 27

Visceral nucleus of CNVII

Answer 27

Superior salivatory nucleus

Question 28

Visceral nucleus of CNIX

Answer 28

Inferior salivatory nucleus

Question 29

Location of nuclei of visceral afferent cranial nerves.

Answer 29

In medulla.

From CN VII (facial), IX (glossopharyngeal) and X (vagus).

Question 30

Nucleus solitarius location

Answer 30

Extends from the pons into the medulla.

Question 31

Parts of nucleus solitarius

Answer 31

Rostral part is gustatory nucleus

Caudal is visceral sensory division

Question 32

Gustatory nucleus of nucleus solitarius

Answer 32

Primary afferents receiving input from taste buds and palate. (ie VII, IX, X)

Question 33

Viscera lsensory division of nucleus solitarius

Answer 33

X: afferents from heart; abdominal viscera
IX: baroreceptors & chemoreceptors from carotid body and sinus.

Question 34

Role of somatic sensory column of cranial nerves

Answer 34

Sensation to face, forehead, mucosa of nose & mouth, most of cranial dura: CNV trigeminal.

Skin behind ear + lining of external auditory meatus: CNVII Facial, CNIX Glossopharyngeal, CNX Vagus

Question 35

Only cranial nerve in special sensory column of brainstem

Answer 35

CN VIII (vestibulocochlear). Hearing and balance.

Question 36

Cranial nerves originating in the midbrain

Answer 36

III, IV

Question 37

Cranial nerves originating in the pons

Answer 37

V, VI, VII, VIII (VIII straddles the pons and medulla)

Question 38

Cranial nerves originating in the medulla

Answer 38

VIII, IX, X, XII (VIII straddles the pons and medulla)

Question 39

Name for nucleus that contains cell bodies of CNVII, IX and X

Answer 39

Nucleus solitarius

Question 40

Name for nucleus that contains cell bodies of CNIX, X

Answer 40

Nucleus Ambiguus