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Flashcards in Cervical and Cranial Nerves Deck (45):
0

Superior root of ansa cervicalis

C1-C2

1

inferior root of ansa ccervicalis

C2-C3

2

Ansa cervicalis

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

3

Ansa cervicalis has an important relationship with what structure

hypoglossal nerve XII

4

Can use _____Root of ansa cervicalis to find _______

superior
hypoglossal n

5

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

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

6

Phrenic N

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

7

SCM and trapezius are innervated by

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

8

GSA fibers innervate structures of what embryologic origin?

ectoderm (skin)

9

GVA fibers innervate structures of what embryologic origin

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

10

GSE fibers innervate structures of what embryological origin

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

11

GVE fibers innervate

smooth muscle and gland

12

GSA fibers convey

pain
temperature
tactile
pressure
proprioception

13

GSA primarily conveyed by what nerve

trigeminal

14

GVA fibers convey

visceral pain (stretch, ischemia)
reflexus

15

sharp, highly localized sensations, think...

GSA

16

dull, aching, burning, poorly localized sensations think...

GVA

17

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

parasympathetic
III, VII, IX, X

18

GVE are components of the ______

ANS
autonomic, not sensory
may be parasympathetic or sympathetic

19

ALL GSA fibers

trigeminal

20

Sensory nucleus for all sensations from the face

trigeminal sensory complex
trigeminal sensory nuclei

21

All GVA and SVA (taste)

solitary nucleus (NTS)

22

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

Solitary nucleus or Nucleus tractus solitarius

23

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

pupils
lacrimal gland
submandibular and sublingual glands
parotid gland

24

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

Edinger-Westphal nucleus,
Ciliary ganglion

25

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

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

26

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

Inferior salivatory nucleus and otic ganglion

27

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

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

28

Vagus nerve sends parasympathetics

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

29

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

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

Endoderm =

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

31

ectoderm =

skin

32

myotomic =

GSE

33

What is the nerve associated with branchial arch 1
what are its sensory and motor components

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

34

branchiomeric =

SVE

35

myotomic muscles vs branchiomeric muscles in the head

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

36

What nerve is associated with branchial arch 2

facial nerve
innervates muscles of facial expression

37

What nerve is associated with branchial arch 4?

vagus nerve, innervates muscles of the laynx and pharynx

38

what cranial nerves pass through the jugular foramen

IX, X, XI

39

Hypoglossal N.
innervates
lesion looks like

All muscles of the tongue, except palatoglossal
lesions result in deviation of the protruded tongue TOWARDS AFFECTED SIDE

40

nucleus ambiguous concerned with muscles of

the larynx and pharynx

41

Glossopharyngeal nerve
innervation
lesions look like

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

difficulty swallowing is a big deal because

can lead to aspiration pneumonia

43

Vagus nerve - important branches

pharyngeal
superior laryngeal (internal and external)
recurrent laryngeal

44

Vagus Nerve
innervates
lesion looks like

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