Exam 2: CN9

Question 1

CN9 carries

Answer 1

Motor
Sensory
Autonomic fibers

Question 2

Glossopharyngeal N motor to

Answer 2

Stylopharyngeus

Question 3

CN9 sensory to

Answer 3

Pharynx
Taste from post tongue
Parasympathetic to parotid

Question 4

Motor fiber cell bodies located in

Answer 4

Superior part of nucleus ambiguus

Question 5

Preganglionic parasympathetic fibers arise from

Answer 5

Inferior salivary nucleus

Question 6

Sensory fibers terminate in

Answer 6

Solitary nucleus

Spinal nucleus of trigeminal

Question 7

2 peripheral ganglion associated with glossopharyngeal nerve

Answer 7

Superior ganglion

Inferior ganglion

Question 8

Inferior ganglion aka

Answer 8

Petrosal ganglion

Question 9

General sensory from

Answer 9

Nasopharynx
Oropharynx
Post. Tongue
Uvula 
Palatine tonsils
Tympanic cavity

Question 10

Cell bodies of general sensory info located in

Answer 10

Inferior ganglion

Question 11

General sensory axons synapse in

Answer 11

Spinal nucleus of trigeminal

Question 12

Taste neuron cell bodies located in

Answer 12

Inferior ganglion

Question 13

Axons of taste neurons synapse is

Answer 13

Sup part of solitary nucleus

Question 14

Visceral afferent information from carotid sinus and carotid body have cell bodies in ___ and synapse in ___

Answer 14

Inferior ganglion

Lower part of solitary nucleus

Question 15

___ contributes LMN to CN IX, X, XI

Answer 15

Nucleus ambiguus

Question 16

Inferior salivary nucleus gives rise to

Answer 16

Preganglionic parasympathetic axons

Question 17

Preganglionic parasympathetic axons from inferior salivary nucleus synapse in

Answer 17

Otic ganglion

Question 18

Otic ganglion gives rise to

Answer 18

Postganglionic fibers that supply parotid gland, buccal gland, inferior labial glands

Question 19

AO of glossopharyngeal

Answer 19

Lateral aspect of superior MO

Question 20

CN9 exits skull at

Answer 20

Jugular foramen

Question 21

Location of inferior and superior ganglion

Answer 21

Either side of jugular foramen; Superior located inside, inferior located outside

Question 22

Tympanic N arises from

Answer 22

Inferior ganglion

Question 23

Tympanic N carries

Answer 23

Preganglionic parasympathetic

Sensory

Question 24

Fibers in tympanic N carried through ___ into tympanic cavity

Answer 24

Tympanic canaliculus

Question 25

In tympanic cavity, tympanic N receives ___ from ____ and forms tympanic plexus

Answer 25

Postganglionic sympathetic Superior cervical ganglion

Question 26

Tympanic plexus carries somatosensory info from

Answer 26

Tympanic cavity Pharyngotympanic tube Mastoid air cells

Question 27

Postganglionic sympathetic fibers supply

Answer 27

Smooth muscle of blood vessels, mostly at arterial level

Question 28

____ past through tympanic plexus and reform as ___

Answer 28

Preganglionic parasympathetic fibers Lesser petrosal N

Question 29

Lesser petrosal N travels through lesser petrosal canal to

Answer 29

Otic ganglion

Question 30

Carotid branch enters nerve at

Answer 30

Inferior Ganglion

Question 31

Carotid branch carries afferent info from

Answer 31

Chemoreceptors in carotid body and baroreceptors in carotid sinus

Question 32

Chemoreceptors sense

Answer 32

Chemical concentration in blood

Question 33

Baroreceptors sense

Answer 33

Pressure

Question 34

___ convey sensory info from mucosa of pharynx

Answer 34

Pharyngeal branches

Question 35

Pharyngeal branches combine with ___ to form pharyngeal plexus

Answer 35

Vagal branches

Question 36

Muscular branch supplies

Answer 36

Stylopharyngeus

Question 37

Tonsillar branches carry sense from

Answer 37

Palatine tonsils and oral mucosa

Question 38

____ carry gen sense and taste from tongue, post to sulcus terminalis

Answer 38

Lingual branches