Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Peripheral Nervous System > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

True or false the vestibulocochlear nerve (VIII) is purely sensory

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What two nerves make up the vestibulocochlear nerve (VIII)

A

vestibular and cochlear nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The vestibular nerve terminates in the vestibular nuclear complex which consists of how many parts? What are their names?

A

4: superior, medial, lateral, and inferior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Where does the vestibular nerve arise?

A

The vestibular ganglion which has superior and inferior parts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Where does the cochlear nerve terminate?

A

cochlear nuclei which has a anterior and posterior portion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

True or false; the cochlear nuclei is composed of axons from the spiral ganglion

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the lateral lemniscus associated with?

A

CN VIII (vestibulocochlear) (hearing)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Axons from the lateral lemniscus travel where?

A

thalamus medial geniculate body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

True or false; peripheral processes from the vestibular ganglion extend to the inner ear structures (Saccule, utricle, and semicircular canals)

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

True or false; the cochlear nucleus is located in the MO along the rhomboid fossa

A

false; the vestibular nuclei is

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

True or false; most vestibular nerve fibers terminate in the medial vestibular nucleus

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the apparent origin of the vestibulocochlear nerve (VIII)

A

cerebellopontine angle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

True or false; CN VIII travels along posterior cranial fossa to the internal acoustic meatus along with CN VII

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

True or false; the vestibular nerve carries 30-40,000 nerve fibers

A

false; carries 20,000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How many nerve fibers does the cochlear nerve carry

A

30-40,000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

True or false; the vestibular nerve splits as it approaches the ear

A

true; it splits into a inferior (8,000 fibers) and a superior (12,000 fibers)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The saccule and the ampullary crest are supplied by which branch of the vestibular nerve

A

inferior (8,000 fibers)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The anterior and lateral semicircular canals and utricle are all supplied by which branch of the vestibular nerve

A

superior (12,000 fibers)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

True or false; the Glossopharyngeal nerve (IX) carries motor, sensory and autonomic fibers

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What muscle is supplied by the glossopharyngeal nerve (IX)

A

stylopharyngeus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What autonomic function does the glossopharyngeal nerve (IX) have

A

taste information from posterior tongue and parasympathetic information from parotid gland

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Motor fibers carried in the glossopharyngeal nerve (IX) arise from where?

A

superior part of the nucleus ambiguus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What kind of fiber arises from the inferior salivatory nucleus in the glossopharyngeal nerve pathway

A

preganglionic parasympathetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Where do afferent sensory fibers in the glossopharyngeal nerve pathway terminate

A

solitary nucleus (just like CN VII)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

True or false; there is one peripheral ganglion associated with the glossopharyngeal nerve

A

false; there are two the inferior and superior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Where do general sensory information conveyed in the glossopharyngeal nerve (IX) synapse in the CNS

A

Spinal nucleus of the trigeminal nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Taste information from the tongue posterior to the sulcus terminals is carried by neurons to the inferior ganglion; where do axons then synapse?

A

(superior part) Solitary nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Information that synapses in the inferior part of the solitary nucleus are carrying what kind of information? From where?

A

visceral afferent; from carotid sinus and carotid body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

The nucleus ambiguus contributes motor neurons to which 3 CNs?

A

IX, X, XI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Motor neurons traveling from the nucleus ambiguus in the IX CN are heading for what muscle?

A

stylopharyngeus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

True or false; the inferior salivatory nucleus gives rise to preganglionic parasympathetic axons carried in the glossopharyngeal nerve (IX)

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Preganglionic parasympathetic fibers from the inferior salivatory nucleus in the glossopharyngeal nerve synapse where? Then where do the axons head?

A

Synapse in the Otic Ganglion

Then supply parotid, buccal, and inferior labial glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

True or false; the apparent origin of the glossopharyngeal nerve is on the inferior part of the MO

A

false; it is on the superior part of the MO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Where does the glossopharyngeal nerve exit the skull

A

Jugular foramen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

What is unique about the superior and inferior ganglion on the glossopharyngeal nerve (IX)

A

The superior is located in the cranium and the inferior is located outside the jugular foramen (after IX exits the skull)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

What does the tympanic nerve arise from? Where does it travel after it arises?

A

Arises from the inferior ganglion of the glossopharyngeal n.

Carries preganglionic parasympathetic fibers and some sensory through the tympanic canaliculus into the tympanic cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Once the preganglionic parasympathetic fibers of the tympanic nerve are in the tympanic cavity, what does the nerve receive? And by receiving this what does it form?

A

Receives postganlionic sympathetic fibers from the superior ganglion (IX)
Together these fibers make up the tympanic plexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

What are the 5 different functions of the glossopharyngeal nerve (IX)

A 
General sensory
Motor
Parasympathetic
Visceral sensory
Taste
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

The tympanic plexus carries somatosensory information from where?

A

Tympanic cavity, pharyngotympanic tube, and mastoid air cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

True or false; the preganglionic parasympathetic fibers in the tympanic plexus will pass through and reform the lesser petrosal nerve

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Once the preganglionic parasympathetic fibers in the tympanic plexus pass through and reform the lesser petrosal nerve, where does it travel?

A

Through the lesser petrosal canal to the otic ganglion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Post-ganglionic parasympathetic fibers from the otic ganglion are carried in branches of what CN? To where?

A

In V3

To parotid, buccal, and inferior labial glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

What kind of information does the carotid branch of the glossopharyngeal nerve (IX) carry?

A

Chemoreceptors in the carotid body, and baroreceptors in the carotid sinus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Pharyngeal branches of the glossopharyngeal n. covey what kind of information? From where?

A

Sensory information, from mucosa of the pharynx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

True or false; pharyngeal branches of the glossopharyngeal n. combine with some vagal branches to form what?

A

Pharyngeal plexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Tonsillar branches of CN IX carry what kind of information? From where?

A

sensory information

From palatine tonsils and oral mucosa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

Lingual branches of the glossopharyngeal n (IX) carry what kind of information? From where?

A

general sensory and taste

from tongue posterior to sulcus terminals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

True or false; the vagus nerve is a mixed spinal nerve carrying motor, parasympathetic, and sensory information (including some taste)

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

What is the longest cranial nerve?

A

Vagus (X)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

What is the most important parasympathetic nerve?

A

Vagus (X)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

The cell bodies for motor fibers of the vagus nerve (X) are located where

A

nucleus ambiguus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

True or false; the nucleus ambiguus which has cell bodies from motor fibers of CNs IX, X, and XI, receives information from both cerebral hemispheres

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

Pre-ganglionic parasympathetic fibers of the vagus nerve (X) arise from where?

A

posterior (dorsal) nucleus of the vagus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

True or false; pre-ganglionic parasympathetic fibers from the vagus receive information indirectly from hypothalamus and the carotid sinus

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

Incoming somatosensory information in the vagus n. (X) terminates where?

A

spinal nucleus of trigeminal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

Taste and viscerosensory information in the vagus n. (X) terminates where?

A

Nucleus of the solitary tract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q

True or false; the vagus n. (X) has two ganglia associated with it and they are the same superior and inferior ganglia discussed with the glossopharyngeal n. (IX)

A

False; the Vagus does have 2 ganglia the superior and inferior but they are different from the superior and inferior ganglia discussed in glossopharyngeal n.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q

The superior and inferior ganglia of the vagus n. (X) also go by what names?

A

Superior- Jugular ganglion

Inferior- Nodose ganglion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

Somatosensory information in the vagus n. (X) have cell bodies located in where?

A

Superior (jugular) ganglion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q

Somatosensory information in the vagus n. (X) from posterior cranial fossa, auricle, external auditory canal, lateral tympanic membrane, and mucosa of oropharynx/laryngopharynx all travel to?

A

The spinal nucleus of the trigeminal n.

61
Q

True or false; the vagus nerve (X) has some taste sensation associated with it

A

True; taste from the epiglottis

62
Q

Taste sensation from the epiglottis is carried in the vagus n. to where?

A

superior part of the nucleus solitary tract (from neurons in the inferior or nodose ganglion)

63
Q

True or false; the vagus n. (X) carries visceral sensory information from larynx and laryngopharynx, viscera in the thoracic and abdominal cavities, and pressure receptors in the aortic arch

A

true

64
Q

What is the apparent origin of the vagus n. (X)

A

lateral aspect of the MO

65
Q

True or false; the apparent origin of the vagus n. (X) comes off the lateral aspect of the MO in a thick trunk

A

false; it comes off in a series of rootlets

66
Q

True or false; after the vagus nerve leaves its apparent origin (lateral aspect of MO) in a series of rootlets, the rootlets combine to form a trunk which gives off one branch before exiting the jugular foramen

A

True; the vagus gives off a meningeal branch

67
Q

Where does the vagus nerve exit the skull?

A

The jugular foramen

68
Q

The meningeal branch given off the vagus nerve (X) before exiting the jugular foramen supplies what

A

dura of the posterior cranial fossa, infratentorial dura

69
Q

True or false; the jugular foramen is compartmentalized by a fibrous septum

A

true

70
Q

The jugular foramen is separated by a fibrous septum, the vagus n. (X) and accessory n (XI) travel in which part of the septum

A

anterior to the septum

71
Q

True or false; the glossopharyngeal n (IX) travels anterior to the fibrous septum of the jugular foramen

A

false; it travels posterior to the septum

72
Q

True or false; the vagus n (X) and accessory n (XI) share a meningeal sheath (arachnoid and dura) after exiting the jugular foramen

A

true

73
Q

What 3 CN exit via the jugular foramen

A

Glossopharyngeal, vagus, accessory (IX, X, XI)

74
Q

Where are the two ganglia of the vagus nerve (X) located

A

Superior (jugular) located in the jugular foramen

Inferior (nodose) located just inferior to the jugular foramen and is cylindrically shaped

75
Q

Which vagus n. ganglion gives off the auricular branch? Where does it give it off? What kind of fibers are they?

A

Superior, in the jugular foramen (where the ganglion is located) and somatosensory fibers

76
Q

True or false; the auricular branch of the vagus n. (X) which comes off of the superior (jugular) ganglion carries sensory information from meatus and part of auricle

A

true

77
Q

True or false; the vagus n. (X) travels within the carotid sheath

A

true

78
Q

After exiting the jugular foramen the vagus n (X) will travel in the carotid sheath between the internal carotid a. and internal jugular v. where does it travel after the carotid bifurcation

A

travels between internal jugular v. and common carotid

79
Q

True of false; the pharyngeal branch of the vagus n. (X) leaves the nerve at the level of the superior ganglion

A

false; at level of the inferior (nodose) ganglion

80
Q

true or false; the pharyngeal branch of the vagus n (X) combines with fibers of the glossopharyngeal n. (IX) and with sympathetic fibers from the sympathetic trunk

A

true; all of these fibers make up the pharyngeal plexus

81
Q

what makes up the pharyngeal plexus

A

pharyngeal branch of the vagus n (X), fibers from the glossopharyngeal n (IX), and sympathetic fibers from the sympathetic trunk

82
Q

What is the function of the pharyngeal branch of the vagus n (X)

A

Motor supply to pharyngeal constrictor muscles, and levator veli palatine of the soft palate

83
Q

True or false; branches to the carotid in the vagus n. (X) come off at the inferior ganglion

A

true

84
Q

Branches to the carotid in the vagus n (X) carry what kind of information? From where? To where?

A

viscerosensory
from chemoreceptors in the carotid body
to inferior part of the nucleus for the solitary tract (Just like CN IX!)

85
Q

True or false; the external laryngeal n. is mostly motor in function while the internal laryngeal n. is mostly sensory in function

A

true

86
Q

The superior laryngeal n. splits into what?

A

the external and internal laryngeal nerves

87
Q

What does the external laryngeal nerve supply

A

motor function to the cricothyroid muscle

88
Q

What does the internal laryngeal nerve supply?

A

sensory information from laryngeal mucosa to as far inferior as vocal folds

89
Q

The inferior laryngeal muscle carries sensory information from laryngeal mucosa and vocal folds, where does the viserosensory info travel? What about pain?

A

Viscerosensory- solitary nucleus

Pain (somatosensory)- spinal nucleus of trigeminal n.

90
Q

True or false; the recurrent laryngeal nerve supplies motor innervation to all muscles of the larynx except the cricothyroid

A

true; the cricothyroid is supplied by the external laryngeal n.

91
Q

The internal laryngeal nerve carries sensory information as low as the vocal folds, what carries sensory information below vocal folds?

A

Recurrent laryngeal n.

92
Q

True or false; the recurrent laryngeal n. follows the same path bilaterally

A

false

93
Q

What is the path of the left recurrent laryngeal n.

A

Comes off vagus (X) after passes in front of aortic arch, the recurrent passes under the aortic arch and ascends becoming the inferior laryngeal nerve

94
Q

What is the path of the right recurrent laryngeal n

A

Comes off vagus and passes posteriorly under the subclavian a. before ascending like the left

95
Q

Which recurrent laryngeal n. passes posterior to the subclavian a.

A

right recurrent laryngeal

96
Q

The superior and inferior cervical cardiac branches from the vagus n. carry what kind of information

A

parasympathetic

97
Q

Which one of the cervical cardiac branches leaves the vagus n. (X) and travels with the great vessels (pulmonary vessels, aorta, and vena cava)

A

Superior cervical cardiac branch

98
Q

Which one of the cervical cardiac branches is given off by the recurrent laryngeal n.

A

inferior cervical cardiac branch

99
Q

True or false; the vagus n. (X) passes anterior to the aortic arch

A

true

100
Q

After passing posteriorly the aortic arch, the vagus n. (X) the vagus n. splits into a left and right vagus n. Which passes anteriorly to the esophagus and contributes to the esophageal plexus

A

left vagus n.

101
Q

The right vagus n. enters the abdominal cavity through what opening? What does it become after entering the abdominal cavity?

A

Enters through the esophageal opening

Becomes the posterior vagal trunk

102
Q

Which vagus n. supplies innervation to the posterior stomach, duodenum, liver, kidneys, small intestine and proximal 2/3 of large intestine

A

right vagus n. (through the superior mesenteric and renal plexuses)

103
Q

Which vagus n. becomes the anterior vagal trunk after entering abdominal cavity through esophageal opening, and sends branches to stomach, liver, pancreas, and superior part of duodenum

A

left vagus n.

104
Q

True or false; the accessory n. (XI) is exclusively a sensory n.

A

Fasle; it is exclusively a motor n.

105
Q

True or false; the accessory n. (XI) has two roots, a cranial and spinal

A

true

106
Q

The accessory n. (XI) is a completely motor n. what muscles does it supply?

A

sternocleidomastoid, trapezius and muscles of the soft palate, pharynx and larynx

107
Q

Where are cell bodies of the accessory n. (XI) found in the CNS?

A

In the nucleus ambiguus

108
Q

The accessory n. (XI) has a cranial root which is associated with the nucleus ambiguus, where is the spinal root found? At what levels?

A

Found in the anterior horn’s gray matter

Found at the level of foramen magnum to C5-C6

109
Q

What is the course of the cranial root of the accessory n. (XI)

A

It emerges from the MO, travels with the spinal root and exits the foramen magnum, then separates from the spinal root and joins the vagus at the inferior ganglion

110
Q

After the accessory n. (XI) has entered the vagus n. inferior ganglion, where does it travel?

A

it travels with the vagus to the pharyngeal plexus, and external and recurrent laryngeal

111
Q

True or false; the spinal root of the accessory n. (XI) originates in the cervical cord, enters the skull through the foramen magnum then exits with the cranial root through the jugular foramen

A

true

112
Q

True or false; the accessory n. (XI) is the sole innervation to the trapezius muscle

A

false; there is also innervation from cervical plexus supplying lower 2/3 of muscle

113
Q

True or false; the hypoglossal n. (XII) is purely motor in function

A

true

114
Q

The hypoglossal n. (XII) is a purely motor n. supplying what muscles?

A

muscles of the tongue (intrinsic and extrinsic) with the exception of palatoglossus

115
Q

Where are cell bodies of the hypoglossal nerve found? Where is this nucleus found?

A

In the hypoglossal nucleus, found on the floor of the rhomboid fossa

116
Q

Which CN emerges as a series of rootlets between the pyramid and olive of the MO before becoming two bundles

A

Hypoglossal n. (XII)

117
Q

Where does the hypoglossal n. exit the skull

A

hypoglossal canal

118
Q

What is hemiatrophy

A

Clinical problem with hypoglossal n. (XII) causes the tongue to deviate toward effected side when sticking tongue out

119
Q

How many pairs of spinal nerves are there?

A

31

120
Q

True or false; the anterior portion of the spinal cord is considered more sensory and dorsal is motor

A

false; the anterior portion is the motor and dorsal sensory

121
Q

True or false; a meningeal branch is present at all levels of the spinal cord

A

true

122
Q

What provides somatosensory and sympathetic supply to the dura, blood vessels, periosteum, ligaments, and intervertebral discs in the spinal cord?

A

meningeal branches

123
Q

The posterior mixed spinal rami divide into lateral and medial branches everywhere except

A

C1

124
Q

The posterior mixed spinal rami are smaller than the anterior ones everywhere except

A

C1, S4 and S5

125
Q

True or false; the posterior mixed spinal rami give motor innervation to the deep back muscles

A

true

126
Q

Which mixed spinal nerves supply motor innervation to the anterior and lateral trunk muscles, and skeletal muscles of the extremity

A

anterior rami

127
Q

True or false; the anterior mixed spinal rami supply sensory innervation to the skin over the extremities/anterior and lateral trunk

A

true

128
Q

White ramus communicans can be found at what cord levels? Do they carry myelinated or unmyelinated fibers

A

T1-L2

Myelinated

129
Q

Are white ramus communicans pre or post ganglionic? Where do fibers synapse?

A

pre-ganglionic

fibers either synapse at the level of entry or travel above or below level to synapse

130
Q

Pre-ganglionic white ramus communicans fibers that pass directly through without synapsing are called what?

A

splanchnic

131
Q

Where can you find gray ramus communicans? pre or post ganglionic? Myelinated or unmyelinated fibers?

A

at all cord levels
post-ganglionic
unmyelinated

132
Q

True or false; C1 posterior rami is larger than the anterior

A

true

133
Q

True or false; C1 posterior rami doesn’t divid into medial and lateral branches

A

true

134
Q

What does the posterior rami of C1 supply? What is its common name

A

suboccipital muscles

suboccipital n.

135
Q

What posterior rami is the greater occipital n? Doe it branch?

A

C2

yes; medial (sensory) and lateral (motor) branches

136
Q

What posterior rami is the least occipital n? Does it branch?

A

C3

Yes; medial (sensory) and lateral (motor) branches

137
Q

What forms the cervical plexus?

A

anterior rami or C1-C4

138
Q

Does the cervical plexus (anterior rami of C1-C4) communicate with any CN?

A

Yes; 3: IX, X, XI

139
Q

True or false; fibers from the inferior ganglion of the vagus n. communicate with the cervical plexus, specifically C1 and C2

A

true

140
Q

Fibers from the spinal accessory n. (XI) communicate with a loop formed by what branches of the cervical plexus?

A

C2 and C3 with C3 and C4

141
Q

Which CN eventually forms the superior root of the ansa cervicalis

A

XII

142
Q

True or false; usually 3 gray ramus communicans communicate with the superior cervical ganglion

A

true

143
Q

True or false; superficial branches of the cervical plexus are purely motor in fxn

A

false; purely sensory

144
Q

True or false; the lesser occipital n. (posterior rami C2) is sometimes associated with cericogenic headaches

A

true

145
Q

The great auricular n. carries fibers from what levels?

A

C2, and C3

146
Q

The transverse cutaneous n. which is formed by fibers of C2 and C3 supply sensory information for skin cover what?

A

The platysma muscle

147
Q

The trunks of what spinal nerves combine to form the medial, lateral, and intermediate supraclavicular nerves

A

C3 and C4

148
Q

What 3 muscles are supplied by branches directly off of the ansa cervicalis

A

Sternothryoid, sternohyoid and omohyoid

149
Q

The phrenic n. is made up of what spinal levels

A

C3, 4, 5 (keep the diaphragm alive!)

Peripheral Nervous System (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions