Spinal 2 Exam 4 Wk 1

Question 1

Because of its function, the seventh cranial nerve is often called the….?

Answer 1

great motor nerve of the face

Question 2

What classifications of fibers are conveyed at the apparent origin of the seventh cranial nerve?

Answer 2

branchial efferent, visceral efferent, somatic afferent, special visceral afferent

Question 3

Most of the seventh cranial nerve will exit the skull via what opening?

Answer 3

the stylomastoid foramen

Question 4

Into what region of the head will the stylomastoid foramen open?

Answer 4

the parotid region

Question 5

Branchial efferent fibers carried in the seventh cranial nerve will innervate what muscles?

Answer 5

muscles of facial expression, muscles of the scalp and auricle, the buccinator, platysma, stapedius, stylohyoid, and posterior belly of the diagastic

Question 6

Visceral efferent fibers conveyed in the seventh cranial nerve originate from which nucleus?

Answer 6

superior salivatory nucleus

Question 7

Preganglionic visceral efferent fibers of cranial nerve VII will exit the pons in what nerve?

Answer 7

nervus intermedius, nerve of Wrisberg, sensory root of facial nerve

Question 8

Which immediate branch of the seventh cranial nerve will convey preganglionic parasympathetic efferent fibers to the lacrimal gland?

Answer 8

greater petrosal or greater superficial petrosal nerve

Question 9

which branch of the seventh cranial nerve will convey preganglionic parasympathetic fibers into the pterygopalatine ganglion?

Answer 9

vidian nerve or nerve of the pterygoid canal

Question 10

What are the names of the ganglion of synapse in the efferent pathway to the lacrimal gland?

Answer 10

pterygopalatine ganglion, sphenopalatine ganglion, Meckel’s ganglion

Question 11

Postganglionic parasympathetic efferent fibers from the pterygopalatine, sphenopalatine, or Mecke’s ganglion will become incorporated in which cranial nerve branch?

Answer 11

maxillary nerve of the trigeminal

Question 12

Which branch of the zygomatic nerve will convey postganglionic parasympathetic efferent fibers to the lacrimal gland?

Answer 12

zygomatictemporal nerve

Question 13

The zygomaticotemporal nerve will convey postganglionic parasympathetic efferent fibers to the lacrimal gland through a communication with which branch of the fifth cranial nerve?

Answer 13

ophthalmic nerve

Question 14

Which immediate branch of the seventh cranial nerve will convey preganglionic parasympathetic efferent fibers to the submandibular and sublinguial glands?

Answer 14

chorda tympani nerve

Question 15

The chorda tympani nerve exits the temporal bone via which opening?

Answer 15

the petrotympanic fissure of the temporal bone

Question 16

The chorda tympani nerve will join which nerve?

Answer 16

the lingual nerve of the mandibular division of the trigeminal

Question 17

Peripheral sensory processes from receptors around the ear and mastoid region are conveyed to the seventh cranial nerve from what other cranial nerve?

Answer 17

vagus n.

Question 18

In general, somatic afferent pathways typically terminate on which nucleus?

Answer 18

spinal trigeminal nucleus

Question 19

What is the classification of sensory fibers associated with taste?

Answer 19

special visceral afferent (SVA) fibers

Question 20

Pseudounipolar neurons associated with taste sensation from the anterior 2/3 of the tongue wil synapse on secondary afferent neurons located in what nucleus?

Answer 20

gustatory nucleus of the nucleus solitarius

Question 21

What fluid separates the membranous labyrinth from the bony labyrinth?

Answer 21

perilymph

Question 22

In what elevations of each part of the vestibular apparatus will receptor cells be identified?

Answer 22

the macula of the saccule, the macula of the utricle, and the crista ampullaris of the ampullae of the semicircular ducts

Question 23

What is unique to the receptor cells associated with equilibrium?

Answer 23

stereocilia and a single kinocilium

Question 24

What is the location of the primary afferent neuron associated with equilibrium?

Answer 24

Scarpa’s ganglion or the vestibular ganglion

Question 25

Receptor cells associated with hearing are located in what structure?

Answer 25

the organ of Corti in the cochlear duct or scala media

Question 26

What is the unique feature of receptor cells associated with hearing?

Answer 26

stereocilia

Question 27

What is the location of the primary afferent neuron associated with hearing?

Answer 27

the spiral ganglion or cochlear ganglion

Question 28

The ninth cranial nerve has an apparent origin from what part of the brain?

Answer 28

the medulla oblongata

Question 29

What is the name of the branchial motor nucleus of the ninth cranial nerve?

Answer 29

nucleus ambiguus

Question 30

Branchial efferent fibers conveyed in the ninth cranial nerve will innervate what target?

Answer 30

stylopharyngeus muscle

Question 31

Preganglionic parasympathetic efferent fibers are observed in what primary branch of the ninth cranial nerve?

Answer 31

tympanic nerve or nerve of Jacobson

Question 32

Within the temporal bone, preganglionic parasympathetic efferent fibers of the ninth cranial nerve will ultimately form what nerve?

Answer 32

the lesser (superficial) petrosal nerve

Question 33

Preganglionic parasympathetic efferent fibers from the ninth cranial nerve will synapse in which ganglion?

Answer 33

otic ganglion or Arnold's ganglion

Question 34

Postganglionic parasympathetic efferent fibers from the otic or Arnold's ganglion will communicate with what other cranial nerve branch?

Answer 34

the auriculotemporal branch of the mandibular division of the trigeminal

Question 35

Peripheral afferent processes associated with receptors in the mastoid air cells, in the tympanic cavity or in the auditory tube arise from pseudounipolar neurons located in what ganglion of the ninth cranial nerve?

Answer 35

the superior glossopharyngeal ganglion or jugular ganglion

Question 36

What is/are the target organ(s) monitoring blood pressure or blood physiology which are supplied by the ninth cranial nerve?

Answer 36

carotid body or carotid glomus and the carotid sinus

Question 37

Ninth cranial nerve pseudounipolar neuron cell bodies monitoring general visceral sensation are located in which ganglion?

Answer 37

inferior glossopharyngeal ganglion or petrosal ganglion

Question 38

Central sensory processes from ninth cranial nerve pseudounipolar neuron cell bodies monitoring general visceral sensation will synapse in what location of the brain?

Answer 38

cardiorespiratory nucleus of the nucleus solitarius

Question 39

Peripheral sensory processes from the postsuical (posterior one third) tongue are conveyed in which cranial nerve?

Answer 39

the glossopharyngeal nerve

Question 40

Ninth cranial nerve pseudounipolar sensory neuron cell bodies monitoring taster are located in which ganglion?

Answer 40

inferior glossopharyngeal ganglion or petrosal ganglion