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GAS > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

Pharyngeal Arch

1
Q

Pharyngeal arch nerves include ?

A

5,7,9,10,11

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2
Q

1st arch innervation and muscles ?

A

CN5. muscles of mastication, tensor tumpani, tensor veli palatini

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3
Q

2nd arch innervation and muscles ?

A

CN 7. muscles of facial expression, stylohyoid, pos digastric, stapedius

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4
Q

3rd and 4th arch innervation and muscles ?

A

stylopharyngeus, pharyngeal constrictors , and levator palati

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5
Q

Opthalmic maxillary portion of CN 5 are associated with sensory, motor, both?

A

sensory

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6
Q

where does CN 5 pass? (on brain)

A

lateral surface of the pons by passing through mid cerebellar peduncle

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7
Q

CNV(1) passes through ? and into ?

A

a. superior orbital fissure b. orbit

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8
Q

CNV(2) passes through ? and into ?

A

rotundum and into pterygopalatine fossa

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9
Q

CNV(3) passes through? and into?

A

foramen ovale and into infratemporal fossa

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10
Q

In CN5 sensory nuclei the Principle trigeminal sensory nuclei is found in? and has to do with ?

A

rostral pons. touch

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11
Q

In CN5 sensory nuclei the Nucleus of Trigeminal Spinal Tract is found in? and has to do with ?

A

extend through caudal pons. temp and pain

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12
Q

In CN5 sensory nuclei the mesencephalic trigeminal nucleus is found in? and has to do with ?

A

caudual midbrain and rostral pons. proprioception from m. of mastication and teeth

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13
Q

CN 5 has Visceral motor components T/F

A

False

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14
Q

Most preganglionic p.s fibers in head travel along branches of CN5. T/F?

A

False CN5 only has POSTganglionic p.s fibers (no visceral motor components

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15
Q

efferents of CN7 include ?

A
  1. branchiomotoe to hyoid arch m (SVE)

2. secretomotor(p.s)to pterygopalatine and submandibular ganglia (GVE)

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16
Q

p.s)to pterygopalatine and submandibular ganglia (GVE) central nucleus controls ?

A

superior salivatory nucleus (GVE)

17
Q

Afferents in CN7?

A
  1. geniculate ganglion in temporal bone
  2. ant 2/3 of tongue and taste buds (SVA)
  3. smaller touch and pain
18
Q

CN 7 exits skull through

A

sylomastoid foramen

19
Q

3 Major branches of the temporal bone include ?

A
  1. greater petrosal n.
  2. facial n.
  3. chorda tymani n.
20
Q

parasympathetic fibers of the greater petrosal n innervate

A

lacrimal glands and small mucous glands of the palate and nasopharynx

21
Q

parasympathetic fibers of the chordae typani innervate?

A

submandibular ganglion to submand. & sublingual glands

22
Q

lesions of CN7 can cause

A
  1. sensitivity to loud sounds(stapedius
  2. failure of lacrimation
  3. failure of salvation in lower oral cavity
  4. loss of taste
23
Q

CN9 is related to this pharyngeal pouch? arch ?

A

2nd.3rd

24
Q

CN9 enters and exits through ?

A

jugular foramen

25
Q

CN9 gives branches to what structures ?

A

base of tongue, pharynx, bifurcation of common carotid a

26
Q

Efferents of CN9

A

Secretomotor control of the parotid gland from otic ganglion via lesser perosal n. (GVE)

27
Q

Afferents of CN9

A
  1. Sup and inf ganglia
  2. tatse pos 1/3
  3. sensory from carotid bosy and sinus
  4. touch and pain form middle ear, tonsildm back of soft palate and pharynx
28
Q

Functional component of Afferent of CN9: touch and pain form middle ear, tonsildm back of soft palate and pharynx

A

GSA

29
Q

Efferents of CN 10 include

A

4th and 6th arch (SVE)

Preganglionic P.S to all visceral structures from neck to d.colon

30
Q

afferents of CN 10 include

A
  1. sensory input from cervical thoracic and abdominal visceral
  2. epiglottis
  3. touch and pain from ear and meninges
31
Q

superior laryngeal branch of CN10 controls

A

motor to cricothyroid m.(phonation)

32
Q

Recurrent laryngeal of CN10

A

motor to all other laryngeal mm. and to constrictor & esophagus

33
Q

Visceromotor (GVE) fibers from the Dorsal Motor Nucleus of the Vagus target ?

A

parasympathetic ganglia in the heart, lungs and abdominal viscera, as far down as the beginning of the descending colon.

34
Q

Problems w/ CN10 include

A

swallowing and phonation

cause painful neralgia

35
Q

gag reflex relates to cn ?

A

9

36
Q

CN 11 innervates

A

trap and SCM

37
Q

Motor nucleus of CN 11 lies between ?

A

C1-C6

38
Q

roots of CN 11 exit laterally T/F?

A

T

39
Q

Lesions on CN11 Can affect

A

contralateral head turns, shoulder elevation and rotation

GAS (11 decks)

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