Cranial Nerves

Question 1

Oculomotor

Answer 1

III

Somatic motor: supply to the levator palpebrae superioris, superior rectus, medial rectus, inferior rectus, and inferior oblique muscles of the eye

visceral motor: provides the parasympathetic supply to constrictor pupillae and ciliary muscles via the ciliary ganglion

Question 2

Trochlear

Answer 2

IV

Somatic motor: superior oblique muscle of the eye

Question 3

Abducens

Answer 3

VI

somatic motor

supply lateral rectus muscle of the eye

Question 4

Trigeminal

Answer 4

Branchial motor: special visceral efferent
muscles of mastication, mylohyoid, anterior belly of digastric, tensor of tympani, tensor palatini

General sensory: general somatic afferent

from the face and scalp to the top of the head, conjunctiva of the eye, mucous membrane, parts of the tongue, teeth, tympanic membrane, meninges, anterial and middle cranial foassae

Question 5

Facial Nerve

Answer 5

VII

Branchial motor: special visceral efferent
Supply the stapedius, stylohyoid, posterior belly of digastric muscles, the muscles of facial expression, including the buccinator, platysma and occipitalis muscles

Visceral motor, via Greater petrosal nerve
Stimulation of the lacrimal, submandibular, sublingual glands, mucous membrane of the nose and hard and soft palates

General sensory
General somatic afferent
via chorda tympani
to supply the skin of the concha of the auricle

special sensory: for taste from the anterior two thirds of the otngue and the hard/soft palates

Question 6

Vestibulochlear

Answer 6

VIII

special sensroy

auditory from the cochlea
balance information from the semicircular canals

Question 7

Glossopharyngeal

Answer 7

IV

Branchial motor: special visceral efferent
Supply the striated muscle, the stylopharyngeus

Visceral motor: to supply the otic ganglion which sends fibers to the parotid gland

visceral sensory: sensation from the carotid body and from the carotid sinus

General sensory: sensation from the posterior 1/3 of the tongue, skin of the external ear, internal surface of the tympanic membrane

special sensory: taste from the posterior one third of the tongue, external skin on the ear,

Question 8

Vagus

Answer 8

X

Branchial motor: muscles of pharynx, tongue (palatoglossus), larynx (except stylopharyngeus), and the lavator something or other

visceral motor: smooth muscle of the glands, pharynx, larynx, thoracic and abdominal viscera

viscera sensory
from the larynx, trachea, esophagus, and thoracic and abdominal viscera, stretch receptors in the walls of the aortic arch, chemoreceptors

general sensory
from the skin at the back of the ear, tympanic membrane stuff, and the pharynx

Question 9

Nucleus and Associated nerves

Masticator

Answer 9

Branchial motor

Trigeminal, muscles of mastication

Question 10

Nucleus and Associated nerves

Facial

Answer 10

Branchial motor

VII, muscles of facial expression

Question 11

Nucleus and Associated nerves

Ambiguous

Answer 11

Branchial motor

IX, X: muscles of pharynx and larynx

Question 12

Nucleus and Associated nerves

Accessory

Answer 12

Branchial motor

XI

Trapezius, sternomastoid

Question 13

Nucleus and Associated nerves

Edinger-Westphal

Answer 13

Visceral motor

III

ciliary muscle, constrictor pupillae

Question 14

Nucleus and Associated nerves

Superior Salivatory

Answer 14

visceral motor

VII

all glands of the head except integumentary and parotid

Question 15

Nucleus and Associated nerves

Inferior Salivatory

Answer 15

visceral motor

IX

Parotid gland

Question 16

Nucleus and Associated nerves

Dorsal vagus

Answer 16

visceral motor

X

all thoracic viscera and abdominal viscera to the splenic flexure

Question 17

Nucleus and Associated nerves

Solitarius

Answer 17

Visceral sensory

IX, X

visceral afferent

information necessary for visceral reflexes, nausea, but not pain

Question 18

Nucleus and Associated nerves

Trigeminal

Answer 18

General sensory

X, VII, IX, X

pain, temp, touch, proprioception from the head and neck, sinuses, and meninges

Question 19

Nucleus and Associated nerves

Special sensory

Answer 19

I, II, VII, IX, VIII, VIII

smell, vision, taste, balance, hearing