Cervical and Cranial Nerves

Question 0

inferior root of ansa ccervicalis

Answer 0

C2-C3

Question 1

Superior root of ansa cervicalis

Answer 1

C1-C2

Question 2

Ansa cervicalis

Answer 2

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

Question 3

Ansa cervicalis has an important relationship with what structure

Answer 3

hypoglossal nerve XII

Question 4

Can use _____Root of ansa cervicalis to find _______

Answer 4

superior

hypoglossal n

Question 5

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

Answer 5

internal jugular vein

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

Question 6

Phrenic N

Answer 6

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

Question 7

SCM and trapezius are innervated by

Answer 7

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

Question 8

GSA fibers innervate structures of what embryologic origin?

Answer 8

ectoderm (skin)

Question 9

GVA fibers innervate structures of what embryologic origin

Answer 9

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

Question 10

GSE fibers innervate structures of what embryological origin

Answer 10

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

Question 11

GVE fibers innervate

Answer 11

smooth muscle and gland

Question 12

GSA fibers convey

Answer 12

pain
temperature
tactile 
pressure 
proprioception

Question 13

GSA primarily conveyed by what nerve

Answer 13

trigeminal

Question 14

GVA fibers convey

Answer 14

visceral pain (stretch, ischemia)
reflexus

Question 15

sharp, highly localized sensations, think…

Answer 15

GSA

Question 16

dull, aching, burning, poorly localized sensations think…

Answer 16

GVA

Question 17

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

Answer 17

parasympathetic

III, VII, IX, X

Question 18

GVE are components of the ______

Answer 18

ANS
autonomic, not sensory
may be parasympathetic or sympathetic

Question 19

ALL GSA fibers

Answer 19

trigeminal

Question 20

Sensory nucleus for all sensations from the face

Answer 20

trigeminal sensory complex

trigeminal sensory nuclei

Question 21

All GVA and SVA (taste)

Answer 21

solitary nucleus (NTS)

Question 22

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

Answer 22

Solitary nucleus or Nucleus tractus solitarius

Question 23

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

Answer 23

pupils
lacrimal gland
submandibular and sublingual glands
parotid gland

Question 24

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

Answer 24

Edinger-Westphal nucleus, | Ciliary ganglion

Question 25

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

Answer 25

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

Question 26

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

Answer 26

Inferior salivatory nucleus and otic ganglion

Question 27

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

Answer 27

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

Question 28

Vagus nerve sends parasympathetics

Answer 28

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

Question 29

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

Answer 29

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

Question 30

Endoderm =

Answer 30

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

Question 31

ectoderm =

Answer 31

skin

Question 32

myotomic =

Answer 32

GSE

Question 33

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

Answer 33

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

Question 34

branchiomeric =

Answer 34

SVE

Question 35

myotomic muscles vs branchiomeric muscles in the head

Answer 35

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

Question 36

What nerve is associated with branchial arch 2

Answer 36

facial nerve | innervates muscles of facial expression

Question 37

What nerve is associated with branchial arch 4?

Answer 37

vagus nerve, innervates muscles of the laynx and pharynx

Question 38

what cranial nerves pass through the jugular foramen

Answer 38

IX, X, XI

Question 39

Hypoglossal N. innervates lesion looks like

Answer 39

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

Question 40

nucleus ambiguous concerned with muscles of

Answer 40

the larynx and pharynx

Question 41

Glossopharyngeal nerve innervation lesions look like

Answer 41

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

Question 42

difficulty swallowing is a big deal because

Answer 42

can lead to aspiration pneumonia

Question 43

Vagus nerve - important branches

Answer 43

pharyngeal superior laryngeal (internal and external) recurrent laryngeal

Question 44

Vagus Nerve innervates lesion looks like

Answer 44

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