unit 4: CN IX, glossopharyngeal

Question 1

the glossopharyngeal n. carries motor, ___ & ____ fibers, therefore it is a mixed nerve

Answer 1

sensory

autonomic

Question 2

glossopharyngeal carries motor (LMN) to the _____, sensory from the ____ (with taste from posterior tongue), and PARA info leading ultimately to the __ __

Answer 2

stylopharyngeus
pharynx
parotid gland

Question 3

nucleus of origin for glossopharyngeal motor fibers

Answer 3

superior part of nucleus ambiguus

Question 4

nucleus of origin for preganglionic parasympathetic fibers

Answer 4

inferior salivatory nucleus

Question 5

two sensory nuclei of termination

Answer 5

solitary nucleus

spinal trigeminal nucleus

Question 6

two peripheral ganglia with the glossopharyng: the smaller ____ ganglion and the _____ ganglion

Answer 6

superior

inferior

Question 7

general sensory info is carried in glossopharyngeal branches from (5)

Answer 7

nasopharynx
oropharynx
tongue posterior to sulcus terminalis
uvula
palatine tonsils

Question 8

taste info from tongue post to sulcus terminalis is carried from the ____ ganglion to the _________________

Answer 8

inferior

superior part of solitary nucleus

Question 9

incoming fibers from the INFERIOR ganglion synapse in the lower part of the ___ ___ with visceral afferent info from the baroreceptors in the ___ ___ and chemoreceptors __ __ (carotid branch)

Answer 9

solitary nucleus
carotid sinus
carotid body

Question 10

three cranial nerves that receive LMN from the nucleus ambiguous

Answer 10

IX
X
XI

Question 11

preganglionic PARA fibers from the inferior salivatory nucleus will synapse in the __ __

Answer 11

otic ganglion

Question 12

three glands that receive postganglionic PARA supply

Answer 12

parotid
buccal
inferior labial

Question 13

apparent origin of glossopharyngeal

-emerges as a series of rootlets

Answer 13

lateral aspect of superior medulla oblongata

Question 14

glossopharyngeal exits skull via the

Answer 14

jugular foramen

Question 15

the SUPERIOR ganglion is located _____ the cranium & the INFERIOR ganglion is located beyond the jugular foramen, ___ the cranium

Answer 15

inside

outside

Question 16

nerve that arises from inferior ganglion and carries both preganglionic para and sensory fibers

Answer 16

tympanic nerve

Question 17

tympanic nerve fibers are carried through the ____ ____ into the tympanic cavity, where it receives post ganglionic SYMPATHETIC fibers from the ____ ___ ganglion to form the ____ ____

Answer 17

tympanic canaliculus
superior cervical
tympanic plexus

Question 18

the tympanic plexus carries somatosensory info from the (3):

Answer 18

tympanic cavity
pharyngotympanic tube
mastoid air cells

Question 19

the preganglionic PARA fibers pass thru the tympanic plexus and reform as the ___ ___ n., which travels to the lesser petrosal canal to the __ ganglion

Answer 19

lesser petrosal

otic

Question 20

postganglionic PARA fibers from the otic ganglion are carried in branches from CN ___ to the parotid, buccal, inferior labial glands

Answer 20

V3 (trigeminal, mandibular)

Question 21

pharyngeal branches convey sensory info from the

Answer 21

mucosa of pharynx

Question 22

the pharyngeal branches combine with some ___ branches to form the ____ ___, near the middle pharyngeal plexus

Answer 22

vagus

pharyngeal plexus

Question 23

the stylopharyngeus, the one muscle supplied by glossopharyngeal n, serves to ELEVATE the ___ & ___ as well as DILATE the ____

Answer 23

larynx
pharynx
pharynx

Question 24

TONSILLAR branches of glossopharyngeal convey sensory info from the

Answer 24

palatine tonsils

oral mucosa

Question 25

LINGUAL branches of glossopharyngeal carry this type of information from the posterior tongue

Answer 25

general sensory

taste