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Clinical Anatomy 2021 > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

What is the innervation of the Inferior oblique muscle?

A

inferior ramus of the oculomotor n.

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2
Q

What is the innervation of the Inferior rectus muscle?

A

inferior ramus of the oculomotor n.

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3
Q

What is the innervation of the Levator palpebrae superioris muscle?

A

superior ramus of the oculomotor n.

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4
Q

What is the innervation of the Medial rectus muscle?

A

inferior ramus of the oculomotor n.

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5
Q

What is the innervation of the superior rectus muscle?

A

superior ramus of the oculomotor n.

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6
Q

What is the innervation of the Lateral rectus muscle?

A

abducens n.

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7
Q

What is the innervation of the Superior oblique muscle?

A

trochlear n.

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8
Q

Which nerves come off the Cerebrum?

A

Olfactory (CN I)

Optic (CN II)

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9
Q

Which nerves come off the Midbrain?

A

Oculomotor (CN III)

Trochlear (CN IV)

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10
Q

Which nerves come off the Pons?

A

Trigeminal (CN V)
Abducens (CN VI)
Facial (CN VII)
Vestibulocochlear (CN VIII)

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11
Q

Which nerves come off the Medulla?

A

Glossopharyngeal (CN IX)
Vagus (CN X)
Hypoglossal (CN XII)

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12
Q

Which nerve comes off the spinal cord?

A

Accessory (CN XI)

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13
Q

Which functions does Olfactory (CN I) have?

A

sensory

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14
Q

Which functions does Optic (CN II) have?

A

sensory

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15
Q

Which functions does Oculomotor (CN III) have?

A

motor and parasympathetic

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16
Q

Which functions does Trochlear (IV) have?

A

motor

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17
Q

Which functions does Trigeminal (V) have?

A

sensory and motor

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18
Q

Which functions does Abducens VI have?

A

motor

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19
Q

Which functions does facial VII Have?

A

sensory, motor, parasympathetic

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20
Q

Which functions does vestibulocochlear VIII have?

A

sensory

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21
Q

Which functions does glossopharyngeal IX have?

A

sensory, motor, parasympathetic

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22
Q

Which functions does vagus X have?

A

sensory, motor, parasympathetic

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23
Q

Which functions does accessory XI have?

A

motor

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24
Q

Which functions does hypoglossal XII have?

A

motor

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25
Q

Oculomotor nucleus and Edinger Westphal nucleus are of what cranial nerve?

A

Oculomotor CN III

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26
Q

Trochlear nucleus is of what cranial nerve?

A

Trochlear CN IV

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27
Q

Trigeminal motor nucleus is of what cranial nerve?

A

Mandibular of Trigeminal CN V3

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28
Q

Abducens nucleus is of what cranial nerve?

A

Abducens CN VI

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29
Q

Facial motor nucleus and superior salivatory nucleus are of what cranial nerve?

A

Facial CN VII

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30
Q

CN I (Olfactory) exits the skull via what opening?

A

Cribiform foramina

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31
Q

Which cranial nerves exit the skull via the superior orbital fissure?

A

CN IV (Trochlear), CN V1 (Ophthalmic of Trigeminal), and CN VI (Abducens)

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32
Q

What are the axon functions of the Olfactory?

A

sensory (smell)

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33
Q

What are the axon functions of the Optic?

A

sensory (vision)

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34
Q

What are the axon functions of the Oculomotor?

A

Motor and pre-parasympathetic

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35
Q

What are the axon functions of the Trochlear?

A

motor

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36
Q

What are the axon functions of the Trigeminal Opthalmic?

A

sensory

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37
Q

What are the axon functions of the Trigeminal Maxillary?

A

sensory

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38
Q

What are the axon functions of the Trigeminal Mandibular?

A

Branchial motor and sensory

39
Q

What are the axon functions of the Abducens?

40
Q

Explain branchial motor

A

Branchial motor- goes to muscles, these muscles derived from a subset of cells called pharyngeal arches

41
Q

What are the axon functions of the Facial?

A

Branchial motor, Pre-parasympathetic, sensory, taste

42
Q

What are the axon functions of the Vestibulocochlear?

A

Sensory- equilibrium and hearing

43
Q

What are the axon functions of the Glossopharyngeal?

A 
Branchial motor
pre-parasympathetic
sensory
sensory, visceral
taste
44
Q

What are the axon functions of the Vagus?

A 
Branchial motor
pre-parasympathetic
sensory
sensory, visceral
taste
45
Q

What are the axon functions of the Accessory?

46
Q

What are the axon functions of the Hypoglossal?

47
Q

Which nerves exit from the cribirform foramina of the skull?

48
Q

Which nerves exit from the optic canal of the skull?

49
Q

Which nerves exit from the superior orbital fissure of the skull?

A

oculomotor
trochlear
trigeminal- ophthalmic
abducens

50
Q

Which nerves exit from the foramen rotundum of the skull?

A

trigeminal maxillary

51
Q

Which nerves exit from the foramen ovale of the skull?

A

trigeminal mandibular

52
Q

Which nerves exit from the internal auditory meatus of the skull?

A

facial

vestibulocochlear

53
Q

Which nerves exit from the internal auditory meatus and stylomastoid foramen of the skull?

A

Facial- branchial motor

54
Q

Which nerves exit from the jugular foramen of the skull?

A

Glossopharyngeal
Vagus
Acccessory

55
Q

Which nerves exit from the hypoglossal canal of the skull?

A

hypoglossal

56
Q

What is the Peripheral structures/distribution of the Olfactory nerve?

A

Olfactory mucosa of nose

57
Q

What is the Peripheral structures/distribution of the Optic nerve?

A

Retina of eye

58
Q

What is the Peripheral structures/distribution of the Oculomotor nerve?

A

LPS, SR, MR, IR, IO (motor)

Ciliary bodies/muscle (accom), sphincter pupillae of iris (constriction) (pre-para)

59
Q

What is the Peripheral structures/distribution of the Trochlear nerve?

A

Superior Oblique

60
Q

What is the Peripheral structures/distribution of the Trigeminal, Ophthalmic nerve?

A

Skin, lacrimal gland (yes!), nasal cavity, conjunctiva, cornea

61
Q

What is the Peripheral structures/distribution of the Trigeminal, Maxillary nerve?

A

Skin mid face, teeth, mucous membranes upper mouth palate, nasopharynx

62
Q

What is the Peripheral structures/distribution of the Trigeminal, Mandibular- branchial motor nerve?

A

Mm. mastication, mylohyoid, ant digastric, tensor tympani, tensor veli palatini (1st pharyngeal arch derivatives)

63
Q

What is the Peripheral structures/distribution of the Trigeminal, Mandibular- sensory nerve?

A

Skin low face, tongue, mouth, mand teeth, ear

64
Q

What is the Peripheral structures/distribution of the Abducens nerve?

A

Lateral rectus

65
Q

What is the Peripheral structures/distribution of the Facial-branchial motor nerve?

A

Mm. facial expression, stapedius, post digastric, stylohyoid (2nd pharyngeal arch)

66
Q

What is the Peripheral structures/distribution of the Facial-prepara nerve?

A

Lacrimal & mucosa glands of nasal cav, paranasal sinuses, roof of mouth, soft palate, nasopharynx (pterygo), submandib, sublingual glands (submandib gang)

67
Q

What is the Peripheral structures/distribution of the Facial-sensory nerve?

A

Palate, skin posterior ear, ext audit meat, tymp membrane, facial mm proprioception

68
Q

What is the Peripheral structures/distribution of the Facial-taste nerve?

A

Anterior 2/3 tongue

69
Q

What is the Peripheral structures/distribution of the Vestibulocochlear-equilibrium nerve?

A

Hair cells of ampullary crests in semicircular ducts, maculae of saccule/utricle

70
Q

What is the Peripheral structures/distribution of the Vestibulocochlear-hearing nerve?

A

Hair cells of spiral organ (of Corti)

71
Q

What is the Peripheral structures/distribution of the Glossopharyngeal-branchial nerve?

A

Stylopharyngeus, sup pharyngeal constrictor (3rd pharyngeal arch)

72
Q

What is the Peripheral structures/distribution of the Glossopharyngeal-prepara nerve?

A

Parotid gland

73
Q

What is the Peripheral structures/distribution of the Glossopharyngeal-sensory nerve?

A

Sensory post 1/3 tongue, oropharynx, mid ear, tonsil bed

74
Q

What is the Peripheral structures/distribution of the Glossopharyngeal-sensory visceral nerve?

A

Chemo (pO2/CO2) and baro (mmHG) from carotid sinus / body

75
Q

What is the Peripheral structures/distribution of the Glossopharyngeal-taste nerve?

A

Taste post 1/3 of tongue

76
Q

What is the Peripheral structures/distribution of the Vagus-Branchialmotor nerve?

A

Mm pharynx, intrinsic larynx, palate, upper 2/3s esophagus (4th pharyngeal arch) Cricothyroid, Levator veli palatini, Salpingopharyngeus, Palatoglossus, Palatopharyngeus, Superior, middle and inferior pharyngeal constrictors

77
Q

What is the Peripheral structures/distribution of the Vagus-prepara nerve?

A

Smooth musc viscera up to splenic flexure

78
Q

What is the Peripheral structures/distribution of the Vagus-sensory nerve?

A

Skin ear, ext audit meatus, dura posterior cranial fossa

79
Q

What is the Peripheral structures/distribution of the Vagus-sensory visceral nerve?

A

Aortic arch, thorax and abdom viscera

80
Q

What is the Peripheral structures/distribution of the Vagus-taste nerve?

A

Epiglottis, palate

81
Q

What is the Peripheral structures/distribution of the Accessory nerve?

A

SCM, trapezius

82
Q

What is the Peripheral structures/distribution of the Hypoglossal nerve?

A

Styloglossus, hyoglossus, genioglossus, intrinsic mm. of tongue (except palatoglossus)

83
Q

What is the Olfactory nerve cells of origin?

A

Nasal mucosa

84
Q

What is the optic nerve cells of origin?

A

ganglion cells retina

85
Q

What is the oculomotor nerve cells of origin?

A

oculomotor

edinger westphal

86
Q

What is the trochlear nerve cells of origin?

A

trochlear (post + contralateral)

87
Q

What is the trigeminal nerve cells of origin?

A 
trigeminal ganglion
trigeminal motor (mandibular also)
88
Q

What is the abducens nerve cells of origin?

89
Q

What is the facial nerve cells of origin?

A

Facial motor
Sup salivatory
Geniculate

90
Q

What is the vestibulocochlear nerve cells of origin?

A

Vestibular ganglion

Spiral ganglion

91
Q

What is the glossopharyngeal nerve cells of origin?

A 
Nucleus ambiguus-motor 
Inferior salivatory- prepara
Inferior ganglion
Superior ganglion
Inferior ganglion
92
Q

What is the vagus nerve cells of origin?

A 
Nucleus ambiguus
Dorsal motor
Superior ganglion
Inferior ganglion
Inferior ganglion
93
Q

What is the accessory nerve cells of origin?

A

Ventral horn (C1-5)

94
Q

What is the hypoglossal nerve cells of origin?

A

hypoglossal

Clinical Anatomy 2021 (11 decks)

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