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Head and Neck 1 > cranial nerves (except cnV) > Flashcards

cranial nerves (except cnV) Flashcards

1
Q

pathway of CNI

A

olfactory nerve cells, cribiform plate, olfactory bulb, olfactory tract, olfactory area of the temporal lobe

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2
Q

functional group of CNI

A

SVA - sense of smell

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3
Q

pathway of CNII

A

rods and cones to ganglion of cells of retina, through the optic canal, optic chiasm, optic tract, common tendinous ring, lateral geniculate body, to occipital lobe

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4
Q

functional group of CNII

A

SSA - vision

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5
Q

pathway of CNVII

A

vestibular and chochlear branch join together and form the vestibulochoclear nerve, then it passes through the internal acoustic meatus and attaches to pons and medulla

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6
Q

t/f. vestibular nucleus is associated with hearing, and cochlear is associated with balance.

A

false, vestibular is associated with balance, and cochlear is associated with hearing

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7
Q

functional group of CNVIII

A

SSA

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8
Q

sensory only cranial nerves

A

I, II, VIII

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9
Q

pathway of CNIV

A

midbrain trochlear nucleus, middle cranial fossa, lateral cavernous sinus, superior orbital fissure, lateral to tendinous ring, innervates superior oblique

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10
Q

functional group of CNIV

A

GSE

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11
Q

pathway of CNVI

A

junction of pons and medulla at abducens nucleus, passes with ICA through cavernous sinus, through superior orbital fissure, through tendinous ring, innervates lateral rectus

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12
Q

functional group of CNVI

A

GSE

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13
Q

pathway of CNXI

A

cranial root at the medulla runs laterally in the post cranial fossa and joins the spinal root.
spinal root of the 5 upper segments of the spinal cord ascend up through the foramen magnum and meet the cranial root. they leave through the jugular foramen to join vagus (cranial) and innervate SCM and traps (spinal)

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14
Q

functional group of the cranial root of CNXI

A

SVE - motor to muscles of soft palate, pharynx, and intrinsic pharynx muscles

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15
Q

functional group of the spinal root of CNXI

A

GSE - innervates SCM and trap

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16
Q

pathway of CNXII

A

rootlets from hypoglossal nucleus on medulla join and travel through hypoglossal canal, enters the root of the tongue and innervates extrinsic tongue muscles (except palatogloss.) and intrinsic tongue muscles

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17
Q

functional group of CNXII

A

GSE - innervates intrinsic tongue muscles and extrinsic tongue muscles, except for palatoglossus

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18
Q

what type of sympathetic fibers are in the cranial region

A

post ganglionic sympathetic from the superior cervical sympathetic ganglion

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19
Q

pathway from the oculomotor branch of CNIII

A

midbrain, middle cranial fossa through the cavernous sinus, through sup orbital fissure, divides into superior and inferior, to the eye muscles

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20
Q

functional group of CNIII from the oculomotor nucleus

A

GSE - innervates eye muscles (not sup oblique or lat rectus)

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21
Q

functional group of CNIII from the edinger westphal nucleus

A

GVE - innervates the sphincter pupillae and ciliary muscles.

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22
Q

pathway from the edinger westphal nucleus

A

(preganglionic) midbrain, middle cranial fossa through cavernous sinus, through sup orbital fissure, continues into inferior division, passes through cilliary ganglion with sympathetic nerves, (post ganglionic) short cilliary nerves to sphincter pupillae and cilliary muscles

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23
Q

sympathetic innervation of the intrinsic eye muscles

A

dilator pupillae, cilliary, superior tarsal (raise upper eyelid)

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24
Q

ptosis

A

drooping of eyelid

25
Q

mydraisis

A

pupil dilation

26
Q

pathway of CNVII

A

starts at junction of pons and medulla, laterally in post cranial fossa with CN8, through internal acoustic meatus, through facial canal, 3 branch off (Golly Polly..), remainder of facial nerve proper goes through stylomastoid foramen, then parotid gland to form parotid plexus

27
Q

3 branches of CN7 before stylomastoid foramen

A

greater petrosal, nerve to stapedius, chorda tympani

28
Q

GSA of CN7

A

senses skin of ear, external acoustic meatus, through geniculate to the trigeminal sensory nucleus on pons/midbrain

29
Q

GVA of CN7

A

pain receptors of nasopharynx, through geniculate to solitary nucleus

30
Q

SVA of CN7

A

taste of ant 2/3 of tongue, through geniculate to solitary nucleus

31
Q

GVE of CN7 from pterygopalatine parasympathetic gang

A

(pre gang) sup salivatory nucleus to geniculate, then greater petrosal which joins with the deep petrosal (sympathetic) and sensory fibers to form vidian nerve, through the pterygopalatine ganglion, (post gang) fibers hitch hike onto zygomatic n of v2, communicating branch, then lacrimal n

32
Q

GVE of CN7 from submandibular parasympathetic gang

A

(pregang) sup salivatory nucleus through internal acoustic meatus, chorda tympani across tympanic membrane, through petrotympanic fissure, hitch hikes on v3, submandibular gang, (post symp) hitch hikes on lingual n of v3 to submand and subling glands (and SVA - ant 2/3 taste)

33
Q

branches of facial nerve proper

A 
"PaDS"
post auricular n
nerve to post digastric
nerve to stylohyoid
"To Zanzibar By Motor Car"
temporal n.
zygomatic n.
buccal n.
mandibular n.
cervical n.
34
Q

when does the facial nerve proper give off its terminal branches

A

after the stylomastoid foramen

35
Q

temporal nerve innervates

A

motor to auricularis and and post, frontalis, orbicularis oculi, corrugator supercilii, procerus

36
Q

zygomatic nerve innervates

A

motor to orbicularis oculi and zygomaticus

37
Q

buccal nerve innervates

A

motor to buccinator and orbicularis oris

38
Q

mandibular nerve innervates

A

motor to depressor labii inferioris, depressor anguli oris, mentalis

39
Q

cervical nerve innervates

A

motor to depressor anguli oris, and platysma

40
Q

SVE of CN7

A

innervates muscles of facial expression, stylohyoid, post digastric, stapedius, from facial motor nucleus

41
Q

pathway of CNIX

A

medulla, post cranial fossa, through the jugular foramen, descends through upper neck to tongue

42
Q

GSA of IX

A

sensory to skin of external ear and post 1/3 of tongue, starting in superior glossopharyngeal ganglion to the trigeminal sensory nucleus

43
Q

GVA of IX

A

sensory to nasopharynx, oropharynx, middle ear, carotid body, and sinus, starting in the inferior glossopharyngeal ganglion to the solitary nucleus

44
Q

SVA of IX

A

taste to post 1/3 of tongue, starting from inferior glossopharyngeal ganglion to the solitary nucleus

45
Q

GVE of IX

A

Innervates the parotid gland, starting in the inferior salivatory nucleus, through the otic ganglion to the gland and hitchhike with auriculotemporal branch of V3.

46
Q

SVE of IX

A

motor to the stylopharyngeus, starting in the nucleus ambiguus

47
Q

branch of the glossopharyngeal nerve that contains sensory and pregang parasymp fibers to the tympanic plexus

A

tympanic nerve

48
Q

what does the tympanic plexus innervate?

A

sensory and sympathetics to the middle ear, pharyngotympanic tube, and mastoid air cells

49
Q

lesser petrosal n is a branch of the

A

tympanic nerve/plexus

50
Q

what is the pathway of the lesser petrosal and what does it innervate?

A

(pregang parasymp) branch from the tympanic plexus, through the foramen ovale, otic ganglion, (postgang parasymp) to the parotid gland by hitch hiking on V3, auriculotemporal n.

51
Q

other branches of the glosspharyngeal

A

pharyngeal, stylopharyngeal, nerve to carotid sinus, lingual branches, tonsillar, palatine, many communicating branches

52
Q

pathway of CNX

A

medulla, through post cranial fossa, through the jugular foramen and descends down the neck through the carotid sheath, through the mediastinum, piercing the diaphragm with the esophagus, and terminates in the abdomen

53
Q

GSA of CNX

A

general sensation from the skin of the external ear, starting in the superior vagal ganglion to the trigeminal sensory nucleus

54
Q

GVA of CNX

A

sensory to the layngopharynx, larynx, thorax, and abdomen, starting in the inferior vagal ganglion, then travels to the solitary nucleus

55
Q

SVA of CNX

A

taste to scattered fibers on the palate and epiglottis, starting in the inferior vagal ganglion, then travels to the solitary nucleus

56
Q

GVE of CNX

A

innervates thoracic and abdominal viscera, starting in dorsal vagal motor nucleus, then travels to the intramural ganglion, then to thorax and abs

57
Q

SVE of CNX

A

motor to muscles of palate, pharynx, and larynx starting in the nucleus ambiguus, then out to the muscles

58
Q

branches of vagus nerve

A

pharyngeal, superior (internal and external) laryngeal, recurrent laryngeal

59
Q

what happens to your uvula or tongue if CNX or XII are injured?

A

uvulA moves Away
Tongue moves Towards
the side of injury

Head and Neck 1 (7 decks)

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