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2 Neuroanatomy > Lecture 11, CNIX - XII > Flashcards

Lecture 11, CNIX - XII Flashcards

1
Q

Glossopharyngeal nerve functional categories

A

Branchial
parasympathetic
general somatic sensory
visceral sensory (special and general)

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2
Q

Branchial motor CN IX

A

stylopharynegues muscle
arises from nucelus ambiguus in medulla
contributes to gag reflex

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3
Q

Parasympathetic CN IX

A

to parotid gland

nerve arises from inferior salivatory nucleus in pons
leave via tympanic nerve, join lesser petrosal nerve to synapse on otic ganglion

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4
Q

General somatic sensory CN IX

A

sensation from middle ear, region external auditory meatus, pharynx, and posterior one-third of tongue

inferior and superior glossopharyngeal ganglion , afferent travel to spinal trigeminal nucleus

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5
Q

Visceral sensory (special) CN IX

A

taste from posterior 1/3 tongue

primary sensory neurons w/cell body in inferior glossopharyngeal ganglion
afferent travel to rostral nucleus solitarius

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6
Q

VIsceral sensory, general CN IX

A

chemoreceptors and baroreceptors of carotid body

cell body is in inferior glossopharyngeal ganglion, afferents travel to caudal nucleus solitarius

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7
Q

Vagus categories

A

branchial motor
parasympathetic
general somatic sensory
visceral sensory, special and general

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8
Q

Branchial motor CN X

A

pharyngeal muscles, swallowing, laryngeal muscles, voice box

nucleus ambiguus

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9
Q

Parasympathetic CN X

A

heart, lungs, and digestive tract

preganglionic = arise from dorsal motor nucleus forms vagal trigone

postganglionic = found in terminal ganglia

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10
Q

General somatic sensory CN X

A

sensation from pharynx, meninges, and region near external auditory meatus

cell body = superior vagal ganglion
synapses on spinal trigeminal nucleus

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11
Q

Visceral sensory, special CN X

A

taste from epiglottis and pharynx

1st order is in inferior vagal ganglion
afferent reach for rostral nucleus solitarius

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12
Q

Visceral sensory, general

A

chemoreceptors and baroreceptors of aortic arch and gastrointestinal tract

1st order in inferior vagal ganglion
afferents go to caudal nucleus solitarius

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13
Q

Spinal Accessory categories

A

branchial motor

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14
Q

Branchia Motor CN XI

A

SCM and upper part of traps
does not arise from cranial nerves

spinal accesory nucleus –> branchial motor fibers

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15
Q

Hypoglossal categories

A

somatic motor

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16
Q

Somatic motor, CN XII

A

intrinsic muscles of the tongue

hypoglossal nucleus –> forms hypoglossal trigone
upper motor neurons for tongue will go through M1 and then into hypoglossal nucleus

2 Neuroanatomy (14 decks)

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