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Neuro I > Cervical and Cranial Nerves > Flashcards

Cervical and Cranial Nerves Flashcards

0
Q

inferior root of ansa ccervicalis

A

C2-C3

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1
Q

Superior root of ansa cervicalis

A

C1-C2

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2
Q

Ansa cervicalis

A

loop of nerve fibers from anterior rami of C1-3
fibers of ansa cervicalis travel with XII nerve for a short distance, but are not a functional component of hypoglossal n

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3
Q

Ansa cervicalis has an important relationship with what structure

A

hypoglossal nerve XII

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4
Q

Can use _____Root of ansa cervicalis to find _______

A

superior

hypoglossal n

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5
Q

Other than CN XII, ansa cervicalis has a close relationship with what

A

internal jugular vein

found on anterior surface or embeded in the fascia of the carotid sheath

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6
Q

Phrenic N

A

anterior to anterior scalene
C3, C4, C5
in the interscalene triangle

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7
Q

SCM and trapezius are innervated by

A

spinal accessory nerve XI
trap C3-4
SCM C2-3

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8
Q

GSA fibers innervate structures of what embryologic origin?

A

ectoderm (skin)

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9
Q

GVA fibers innervate structures of what embryologic origin

A

endodermal
gut
(post 1/3 of tongue to mid-portion of the transverse colon

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10
Q

GSE fibers innervate structures of what embryological origin

A 
myotomic origin
(in head and neck= extraocular muscles and intrinsic muscles of the tongue)
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11
Q

GVE fibers innervate

A

smooth muscle and gland

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12
Q

GSA fibers convey

A 
pain
temperature
tactile 
pressure 
proprioception
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13
Q

GSA primarily conveyed by what nerve

A

trigeminal

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14
Q

GVA fibers convey

A 
visceral pain (stretch, ischemia)
reflexus
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15
Q

sharp, highly localized sensations, think…

A

GSA

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16
Q

dull, aching, burning, poorly localized sensations think…

A

GVA

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17
Q

GVE fibers are associated with the _______ fibers coursing in which CN’s?

A

parasympathetic

III, VII, IX, X

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18
Q

GVE are components of the ______

A

ANS
autonomic, not sensory
may be parasympathetic or sympathetic

19
Q

ALL GSA fibers

A

trigeminal

20
Q

Sensory nucleus for all sensations from the face

A

trigeminal sensory complex

trigeminal sensory nuclei

21
Q

All GVA and SVA (taste)

A

solitary nucleus (NTS)

22
Q

sensory nucleus for general sensations from the posterior 1?3 of the tongue to the midportion of the transverse colon

A

Solitary nucleus or Nucleus tractus solitarius

23
Q

Clinically if we are concerned with the GVE parasympathetic column, what are we concerned with?

A

pupils
lacrimal gland
submandibular and sublingual glands
parotid gland

24
Q

What nucleus and ganglion are concerned with GVE parasympathetic innervation to ciliary mm of the eye and sphincter pupillae

A

Edinger-Westphal nucleus,

Ciliary ganglion

25
Q

What nucleus and ganglion (2) are concerned with sending parasympathetic fibers to the lacrimal gland and submandibular and sublingual glands?

A 
Superior salivatory nucleus
sphenopalatine ganglion (lacrimal)
submandibular ganglion (submandibular and sublingual glands)
26
Q

What nucleus and ganglion are concerned with sending parasympathetics to the partotid gland

A

Inferior salivatory nucleus and otic ganglion

27
Q

What nucleus and ganglia are concerned with sending parasympathetics to the larynx, pharynx, thorax, and abdomen?

A

Dorsal Motor nucleus (X) sending fibers to scattered ganglia (go on to inn various glands and smooth muscles in these regions)

28
Q

Vagus nerve sends parasympathetics

A

from neck to thorax (heart and lungs) to abdomen
vagus has a huge territory
innervates ENDODERM

29
Q

what are the functional components associated with each of the branchial arches that we care about

A

one nerve
one blood vessel

these functional components are related to embryology, they are a genetic connection. Once these associations are made, they are not broken

30
Q

Endoderm =

A

post 1/3 of tong to about 1 inch above the anus.

all the lining stuff

31
Q

ectoderm =

A

skin

32
Q

myotomic =

A

GSE

33
Q

What is the nerve associated with branchial arch 1

what are its sensory and motor components

A

Trigeminal
cheif sensory nerve of the face
mm of mastication (these muscles then are not myotomic, they are branchiomeric)

34
Q

branchiomeric =

A

SVE

35
Q

myotomic muscles vs branchiomeric muscles in the head

A 
myotomic= tongue and extraocular muscles (GSE)
branchiomeric= muscles of mastication  (?) and muscles of facial expression? muscles of laynx and pharynx (?)
36
Q

What nerve is associated with branchial arch 2

A

facial nerve

innervates muscles of facial expression

37
Q

What nerve is associated with branchial arch 4?

A

vagus nerve, innervates muscles of the laynx and pharynx

38
Q

what cranial nerves pass through the jugular foramen

A

IX, X, XI

39
Q

Hypoglossal N.
innervates
lesion looks like

A

All muscles of the tongue, except palatoglossal

lesions result in deviation of the protruded tongue TOWARDS AFFECTED SIDE

40
Q

nucleus ambiguous concerned with muscles of

A

the larynx and pharynx

41
Q

Glossopharyngeal nerve
innervation
lesions look like

A

SENSORY, sensory part of gag reflex. sensory to post 1/3 of tongue and pharynx too

loss of gag reflex
slight dysphagia
loss of sensation in pharynx and posterior 1/3 of tongue

42
Q

difficulty swallowing is a big deal because

A

can lead to aspiration pneumonia

43
Q

Vagus nerve - important branches

A

pharyngeal
superior laryngeal (internal and external)
recurrent laryngeal

44
Q

Vagus Nerve
innervates
lesion looks like

A

lots of stuff from head to thorax to abdomen

lesions of pharyngeal, and laryngeals
dysphonia, dysphagia, dyspnea, loss of gag or laryngeal cough reflex
motor part of gag reflex

Neuro I (30 decks)

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