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head and neck anatomy 1 > cranial nerves > Flashcards

cranial nerves Flashcards

1
Q

what is the name of CN i?

A

olfactory

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2
Q

what is the name of CN ii?

A

optic

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3
Q

what is the name of CN iii?

A

oculomotor

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4
Q

what is the name of CN iv?

A

trochlear

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5
Q

what is the name of CN v?

A

trigeminal

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6
Q

what is the name of CN vi?

A

abducens

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7
Q

what is the name of CN vii?

A

facial

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8
Q

what is the name of CN viii?

A

vestibulochlear

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9
Q

what is the name of CN ix?

A

glossopharyngeal

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10
Q

what is the name of CN x?

A

vagus

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11
Q

what is the name of CN xi?

A

spinal accessory

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12
Q

what is the name of CN xii?

A

hypoglossal

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13
Q

which nerve is the only one capable of regenerating?

A

olfactory

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14
Q

what is the function of the olfactory nerve (CNi)?

A

conveys special sensory information related to smell

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15
Q

name the specialized epithelial tissue inside the nasal cavity that is involved in smell?

A

olfactory epithelium

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16
Q

which type of sensory information does the olfactory nerve carry?

A

special sensory

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17
Q

which type of sensory information does the optic nerve carry?

A

special sensory

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18
Q

where are nerve cell bodies of the optic nerve found found?

A

retina

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19
Q

what is the function of the retina?

A

transmits impulses to the brain from the retina at the back of the eye.

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20
Q

which types of motor impulses does the oculomotor nerve carry?

A

somatic motor and visceral motor

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21
Q

what is the function of the oculomotor nerve (CN iii)

A

innervates extrinsic eye muscles that enable most movements of the eye and that raise the eyelid.

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22
Q

which cranial nerves work together to supply the eye muscles?

A
  • oculomotor (CN iii)
  • trochlear (CN iv)
  • abducens (CN vi)
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23
Q

where do the cell bodies of the cranial nerves that supply the eye muscles arise from?

A

midbrain

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24
Q

if a patient shows inability to move their eye down and out on 1 side this may indicate problems with which cranial nerve?

A

oculomotor

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25
Q

which type of motor impulses does the trochlear nerve carry?

A

somatic motor

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26
Q

the trochlear nerve innervates a single muscle, what is the name of this muscle?

A

superior oblique

27
Q

which muscles does the oculomotor nerve innervate?

A
  • superior rectus
  • medial rectus
  • inferior oblique
  • levator palpebrae superioris
28
Q

if the patient can’t look down it is likely they have a problem with which cranial nerve?

A

trochlear

29
Q

name the first branch of the trigeminal nerve (CN V1)

A

ophthalmic

30
Q

name the second branch of the trigeminal nerve (CN V2)

A

maxillary

31
Q

name the third branch of the trigeminal nerve (CN V3)

A

mandibular

32
Q

which type of sensory function do all 3 branches of the trigeminal nerve have?

A

special sensory

33
Q

the ophthalmic branch of the trigeminal nerve provides sensation from which areas?

A

cornea, skin of forehead, scalp, eyelids, nose, mucosa of nasal cavities, paranasal sinuses

34
Q

the maxillary branch of the trigeminal nerve provides sensation from which areas?

A

face over maxilla, upper lip, maxillary teeth, maxillary sinuses

35
Q

the mandibular branch of the trigeminal nerve provides sensation from which areas?

A

side of mandible, mandibular teeth, mucosa of mouth, anterior 2/3 of tongue

36
Q

the superior alveolar nerve branches of what cranial nerve?

A

maxillary branch of the trigmenal

37
Q

the inferior alveolar nerve branches of what cranial nerve?

A

mandibular branch of trigeminal

38
Q

how would you asses the integrity all 3 branches of the trigeminal nerve?

A

touch 6 places

39
Q

which type of motor supply does the abducens nerve supply?

A

somatic motor

40
Q

what is the function of the trigeminal nerve (CN v)

A

sensation in the face and motor functions such as biting and chewing

41
Q

what is the function the abducens nerve?

A

supply motor function to lateral rectus

42
Q

where does the abducens nerve arise?

A

pons

43
Q

what does LR6 SO4 mean?

A
  • Lateral Rectus 6
  • Superior Oblique 4
  • all other eye muscles supplied by CN 3
44
Q

what is the nemonic to remember which cranial nerves supply which eye muscles?

A

LR6 SO4

45
Q

the facial nerve supplies brachial motor supply to where?

A
  • muscles of facial expression
  • scalp
  • stapedius (small ear muscle)
46
Q

the facial nerve supplies special sensory supply to where?

A
  • anterior 2/3 tongue

- palate

47
Q

the facial nerve supplies visceral motor supply to where?

A
  • P/S to submandibular and sublingual glands
  • lacrimal gland
  • glands of nose
  • glands of palate
48
Q

how would you test the integrity of the facial nerve (CN vii)

A

puff cheeks and raise eyebrows

49
Q

which nerve passes though the parotid gland yet does not supply it?

A

facial

50
Q

which nerve supplies the parotid gland?

A

glossopharyngeal

51
Q

which type of sensory functions does the vestibulocochlear nerve provide?

A

special sensory

52
Q

what is the function of the vestibulocochlear nerve (CN viii)?

A

hearing from spinal organ

53
Q

what types of sensory innervations does the glossopharyngeal nerve provide?

A
  • visceral sensory
  • special sensory
  • somatic sensory
54
Q

what types of motor supply does the glossopharyngeal nerve provide?

A
  • somatic motor

- visceral motor

55
Q

where does the glossopharyngeal nerve (CN ix) provide motor function to?

A
  • parotid gland (P/S)

- stylopharyngeus

56
Q

where does the glossopharyngeal nerve (CN ix) provide sensory function to?

A
  • parotid gland
  • pharynx
  • middle ear
  • posterior 1/3 tongue
  • external ear
57
Q

which nerve is known as the wandering nerve?

A

vagus (CN x)

58
Q

what types of motor functions does the vagus nerve provide?

A
  • somatic motor

- visceral motor

59
Q

vagus nerve provide?

A
  • visceral sensory
  • special sensory
  • general sensory
60
Q

what is the function of the vagus nerve (CN X)?

A

connect the brain to the body

61
Q

what type of motor supply does the spinal accessory nerve provide?

A

somatic motor

62
Q

what is the fucntion of the spinal accessory nerve (CN xi)?

A

motor supply to sternocleidomastoid and trapezius

63
Q

what type of motor supply does the hypoglossal nerve provide?

A

somatic motor

64
Q

what is the fucntion of the hypoglossal nerve (CN xii)?

A

motor and extrinsic muscles of tongue (except palatoglossal)

head and neck anatomy 1 (4 decks)

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