Brainscape's Knowledge GenomeTM

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


See full index

Neuro Anatomy > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

CNs of myelencephalon

A

VI-X, XII

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

CN VI location

A

emerges from trapezoid body just lateral to pyraminds

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

CN VII location

A

emerges from trapezoid body just medial to CN VIII

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

CN VIII location

A

enters brainstem at lateral aspect of trapezoid body adjacent to cerebellum. The bulk of the nerve remains in PTB when brain is removed, only a stub remains attached to the brain. Sometimes difficult to differentiate from tissue cerebellum

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

CN IX location

A

Multiple rootlets emerge from lateral aspect of medulla adjacent to cerebellum just cd to trap body; may be hard to find

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

CN XII location

A

multiple rootlets emerge from cd medulla just lat to pyramids

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

CN V location

A

enters/ emerges from the pons at lat aspect of transverse fibers of pons

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

CN III location

A

emerges from ventral mesencephalon in middle of crus cerebri

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

CN IV location

A

only CN to emerge from D aspect of brainstem; runs through rostral medullary vellum just cd to cd colliculi; may see it running down lat aspect of mesencephalon on your brains

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

CN mesencephalon

A

CN III, CN IV

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

CN Metencephalon

A

CN V

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

CN I

A

olfactory; olfaction

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

CN I signs of dysfunction

A

owners of hunting dogs may notice deficits otherwise limited; noxious substances assess CN V not olfaction

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

CN II

A

optic; vision, PLR, visuomotor responses, circadian rhythm entrainment

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

CN II tests

A

menace, PLR, visual following, obstacle navigation, visual placing

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

CN III fx pt 1

A

oculomotor; motor to dorsal rectus, ventral rectus, medial rectus, ventral oblique, levator palpebrea

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

CN III fx pt 2

A

motor to pupillary constrictor and cilliary muscles

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

CN III test pt 1

A

ventrolateral strabismus of ipsilateral eye; VOR: no/ slow adduction of globe

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

CN III test pt 2

A

No/ slow PLR anisocoria

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

CN IV

A

trochlear; motor to dorsal oblique

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

CN IV test

A

extortion or rotation of globe (calf vs cat)

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

CN V

A

trigeminal V1 ophthalmic, V2 maxillary, V3 mandibular

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

V1

A

ophthalmic; sensation to forehead, medial eyelid, eyeball, nasal mucosa (septum)

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

V1 test

A

palpebral reflex (medial canthus), nasal septum sensation, corneal reflex (autonomous)

25
Q

V2

A

Maxillary; sensation to maxilla, upper lips, teeth, gums; lateral eyelid and nose, nasal mucosa, palate

26
Q

V2 test

A

palpebral reflex (lateral cants), sensation to nasal mucosa, punch upper lip lateral to canine (autonomous)

27
Q

V3 sensory

A

Mandibular; sensation to chin, tongue, and lower jaw, lip, teeth, and gums. Proprioception to teeth, masticatory muscles

28
Q

V3 sensory

A

pinch lower lip lateral to canine (autonomous)

29
Q

V3 motor

A

mandibular; motor to muscles of mastication (temporals, master, rostral digastrics, pterygoids)

30
Q

V3 motor test

A

muscle atrophy, decreased jaw tone and dropped jaw require bilateral loss of fx

31
Q

CN VI

A

abducent; motor to lateral rectus and retractor bulbi

32
Q

CN VI test

A

medial strabismus; VOR: no/ slow abduction; observe globe retraction with corneal stimulation or menace

33
Q

CN VII

A

facial nerve

34
Q

CN VII SE

A

motor to muscles of facial expression and caudal digastricus

35
Q

CN VII SE test

A

palpebral reflex, menace response, lip droop (lead to drooling, food falling from mouth), ear droop, facial asymmetry;
Farm animals only: Ptosis

36
Q

CN VII VE

A

motor to all lacrimal mucous and salivary glands of head except parotid, zygomatic, and bucal

37
Q

CN VII VE test

A

schemer tear test

38
Q

CN VII SA

A

sensation to skin concave surface of pinna

39
Q

CN VII SA test

A

ear movement when concave surface of pinna is tickled

40
Q

CN VII SS

A

taste from rostral 2/3 tongue; no test

41
Q

CN VIII

A

vestibulocochlear; audition; vestibular fx

42
Q

CN VIII test

A

auditory orienting, clients report hearing loss, circling, nystagmus, positional strabismus, head tilt

43
Q

CN IX

A

glossopharyngeal

44
Q

CN IX SE

A

motor to muscles of soft palate and pharynx

45
Q

CN IX SE test

A

gag reflex, dysphagia

46
Q

CN IX VA

A

carotid body and carotid sinus, sensory from caudal tongue and pharyngeal mucosa

47
Q

CN IX VA test

A

gag reflex

48
Q

CN IX SS

A

Taste cd 1/3 tongue; no test

49
Q

CN IX VE

A

parotid, zygomatic, and buccal salivary glands; no test

50
Q

CN X

A

vagus

51
Q

CN X SE

A

motor to muscles of pharynx larynx and esophagus

52
Q

CN X SE test

A

gag reflex, dysphagia, voice change, inspiratory stridor, aspiration

53
Q

CN X VA

A

Visceral sensation from pharynx, larynx, trachea, thoracic, and abdominal viscera

54
Q

CN X VA test

A

gag reflex

55
Q

CN X VE

A

visceral motor to thoracic and abdominal viscera (terminal ganglia); no clinically practical way to asses this

56
Q

CN XI

A

accessory; motor to sternocephalicus, cleidocephalicus, omotransversarius

57
Q

CN XI test

A

neck movement, trapezius atrophy

58
Q

CN XII

A

Hypoglossal; motor to intrinsic and extrinsic muscles of tongue. Involved in swallowing, licking, and chewing

59
Q

CN XII test

A

Tongue deviates towards side of lesion, trouble drinking, tongue atrophy

Neuro Anatomy (17 decks)

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