Cn - Vi

Front 1

CN component that CN XI (spinal accessory nerve) have.

Back 1

GSE

Front 2

GSE of CN XI innervate 2 muscles

Back 2

SCM and trapezius

Front 3

____ of CN XI enters the posterior cranial fossa thru the _____ and exit the posterior cranial fossa thru _____ with CN IX and X.

Back 3

spinal root of CN XI
foramen magnum
jugular foramen

Front 4

spinal root of CN XI originate from the ____ nucleus w/i the lateral ventral horn of the ____ segments.

Back 4

from the accessory nucleus

C1 - C5 segments

Front 5

cranial root arise from _____ of medulla joins the Vagus n. and exit the jugular formen with spinal root of CN XI.

Back 5

nucleus of ambiguus

Front 6

CN XI is vulnerable to lesion as it crosses _____ triangle, often due to ______

Back 6

posterior cervical triangle

iatrogenic lesion

Front 7

lesions of CN XI lead to 2 muscle paresis, they are...

Back 7

trapezius and SCM paresis

Front 8

Trapezius paresis cause ....

Back 8

ipsilateral "shoulder drop" to the side of leision

Front 9

SCM paresis cause ...

Back 9

weaknss in contralateral rotation against resistance

Front 10

_____ of _____ innervate anterior and prevertebral cervical musculature and diaphragm.

Back 10

muscular branches of the cervical plexus

Front 11

what nerves innervate diaphragm? and these nerves are formed from what central rami?

Back 11

phrenic nerves of cervical plexus formed by C3, 4, 5 ventral rami

Front 12

branches of the ANSA cervicalis innervate most of the _____ m.

Back 12

infrahyoid "strap" muscles

Front 13

_____ or _____ arises from C1
______ arises from ___ and ____

Back 13

superior root or descendens hypoglossi arises from C1

inferior root arises from C2 and C3

Front 14

2 roots make up ANSA cervicalis

Back 14

superior root or descendens hypoglossi

inferior root

Front 15

4 groups of cutaneous nerves arises from the cervical plexus:

Back 15

lesser occupital n.
greater auricular n.
transverse cervical n.
supraclavicular n.

Front 16

lesser occipital n. innervates ....
greater auricular n. innervates ...
supraclavicular n. innervates ...

Back 16

skin of lateral scalp
skin overlying the MD
skin overlying the posterior cervical triangle

Front 17

1. lesser occipital n. arises from ___ of ventral ramus
2. greater auricular n. arises from ___ and ___ of ventral ramus
3. transverse cervical n. arises from ___ of ventral ramus
4. supraclavicular n. arises from ___ of ventral ramus

Back 17

1. C2
2. C2 and C3
3. C2 and C3
4. C3 and C4

Front 18

diaphramic pain is referred to ____

Back 18

shoulder

Front 19

branches of cervical plexus join with branches of _____ in providing the cutaneous innervation of the face

Back 19

CN V, trigeminal n.

Front 20

branches of cervical plexus can be blocked by an injection at _____

Back 20

Erb's point (aka Puncta Nervosum)

Front 21

CN XII - hypoglossal nerve rootlets arise from _____ of the medulla and converge on _____ canal

Back 21

pre-olivary sulcus

hypoglossal canal

Front 22

_____ contains the cell bodies of the lower motor neurons of ______ is located in the medulla in the floor of the 4th ventricle

Back 22

hypoglossal nucleus

CN VII

Front 23

hypoglossal nucleus give rise to how many rootlets of CN XII

Back 23

10 - 15

Front 24

CN XII exit the skull thru ____, courses inferiorly and laterally btw internal carotid artery and ______. The nerve loops anteriorly above the _______, deep to the posterior digastric. The nerve continues on the lateral surface of the ______ m. , w/i the _____ triangle.

Back 24

hypoglossal canal
internal jugular vein
greater horn of the hyoid
hyglossus muscle
digastric triangle

Front 25

CN XII supply 4 muscles

Back 25

hyoglossus muscle
styloglossus muscle
genioglossus muscle
all intrinsic tongue muscles

Front 26

CN XII lies inferior to the 2 sensory nerves of the tongue:

Back 26

lingual n (V3)
glossopharyngeal n (CN IX)

Front 27

CN XII is vulnerable to injury in procedure known as

Back 27

carotid endarterectomy

Front 28

CN XII is accompanied by fibers of the C1 ventral ramus, and C1 innervate 2 muscles

Back 28

thyrohyoid and geniohyoid muscles directly

Front 29

integrity of CN XII can be tested by asking patients to _______

Back 29

protrude the tongue

Front 30

unilateral hypoglossal lesion result in ______

Back 30

lick the wound - tongue protrude to the same side of lesion

Front 31

protrusion of tongue that deviate to one side is the result of ______

Back 31

functional genioglossus being unopposed

Front 32

muscular disorders that result in patients lick the wound

Back 32

1. ipsilateral atrophy of genioglossus m.
2. fibrillations and fasciculation (muscle twitching)
3. mild dysarthria (difficult to pronounce consonants)

Front 33

lesions of CN XII include

Back 33

1. tumors or meningiomas of the posterior cranial fossa or nasopharynx
2. ICA aneurysm or dissection below the skull base
3. IJV puncture below the skull base
4. lesions w/i the sublingual space or tongue: neoplasm (e.g. squamous cell carinoma), infection (odontogenic abscess in sublingual space), iatrogenic (surgical mistake)