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Anatomy III > Nerves > Flashcards

Nerves Flashcards

1
Q

Olfactory nerve passes through the ______________ (bony landmark)

A

cribiform plate

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2
Q

Optic nerve passes through the ________ (bony landmark)

A

optic canal

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3
Q

Optic chiasm located in __________ (bony landmark)

A

sulcus chiasmaticus

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4
Q

Nasal vs. temporal retina

A

Nasal = medial –> cross to contralateral optic tract via optic chiasm

Temporal = lateral –> remain in impsilateral optic tract

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5
Q

Optic nerve synapses in the _________ and ________ nuclei

A

lateral geniculate, midbrain

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6
Q

Optic nerve

A

special sensory (vision)

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7
Q

Occulomotor nerve originates from the ________ nucleus and _________ nucleus located in the __________

A

oculomotor, Edinger-Westphal

Midbrain

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8
Q

Superior ramus of oculomotor nerve innervates (motor) __________ and _________ muscles

A

levator palpebrae superioris

superior rectus

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9
Q

Inferior ramus of oculomotor nerve innervates _________, ________, and _______ muscles

A

Medial rectus
Inferior rectus
Inferior oblique

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10
Q

The inferior ramus of the oculomotor nerve carries _________ axons while the superior ramus does not

A

preganglionic parasympathetic

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11
Q

Postganglionic parasympathetic innervation of the oculomotor nerve is responsible for ________ and ___________

A

Accommodation of the ciliary body (muscle)

Constriction of the iris

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12
Q

Postganglionic sympathetic innervation of the oculomotor nerve is responsible for ___________

A

dilation of the iris

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13
Q

Unaccomodated lens

A

flat lens, distant vision, zonule fibers contracted when ciliary muscle is relaxed

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14
Q

Accomodated lens

A

thick lens, near vision, zonule fibers relaxed when ciliary muscle contracts

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15
Q

Cranial nerves passing through the superior orbital fissure

A

oculomotor nerve
trochlear nerve
trigeminal nerve (opthalmic branch)
Abducens nerve

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16
Q

Nerves originating in the midbrain (mesencephalon)

A

oculomotor nerve
trochlear nerve
trigeminal nerve (opthalmic branch)

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17
Q

Motor axons of the trochlear nerve (IV) innervate the _________ muscle

A

superior oblique

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18
Q

Abducens nerve (VI) originates in the _________

A

pons

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19
Q

Abducens motor neuron innervates _________ muscle

A

lateral rectus

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20
Q

Hypoglossal nerve (XII) originates in the __________

A

medulla

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21
Q

Hypoglossal nerve emerges between the ________ and ________ of the medulla

A

pyramid, olive

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22
Q

Damage to the right hypoglossal nerve results in _______________

A

deviation of the tongue to the right

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23
Q

Motor nerves of the hypoglossal nerve (XII) originate in the ____________ and innervate __________ (4) (muscles)

A

hypoglossal nucleus of the medulla

Genioglossus
Hyoglossus
Styloglossus
Intrinsic muscles of the tongue

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24
Q

Cranial nerve pneumonics:

A

Oh, Oh, Oh, To Touch And Feel Virgin Girls Vaginas And Hymens

I. Olfactory
II. Optic
III. Occulomotor
IV. Trochlear
V. Trigeminal
VI. Abducens
VII. Facial
VIII. Vestibulocohlear
IX. Glossopharyngeal
X. Vagus
XI. Accessory
XII. Hypoglossal
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25
Q

Cranial nerve pneumonic for sensory and motor

A

Some Say Marry Money, But My Brother Says Big Boobs Matter More

(S= Sensory, M= Motor, B= Both)

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26
Q

The long ciliary nerve innervates __________

A

cornea

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27
Q

The short ciliary nerve innervates ___________ and passes through the ____________

A 
cornea
ciliary ganglion (where postganglionic parasympathetic axons arise)
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28
Q

The posterior ethmoidal nerve innervates

A

the sinus

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29
Q

External nasal nerve innervates ___________

A

skin (nose)

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30
Q

Internal nasal nerve innervates ___________

A

mucosa (nasal cavity)

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31
Q

Infratrochlear nerve innervates ____________

A

skin (nose)

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32
Q

The supraorbital nerve passes through the _________ (bony landmark) and innervates ___________

A

supraorbital foramen

skin (lid, scalp, forehead)

33
Q

The supratrochlear nerve innervates ____________

A

skin (lid, scalp, forehead)

34
Q

The lacrimal nerve innervates ________________

A

skin (lid scalp, forehead)

35
Q

Trigeminal nerves originate from the _____________

A

pons

36
Q

Spinal accessory nerve (XI) originates in _______________

A

C1-C5 spinal accessory nucleus

37
Q

Motor cell bodies of the spinal accessory nerve (XI) originate in ___________

A

C1-C5 spinal accessory nucleus

38
Q

Spinal accessory nerve passes through __________, then __________ (bony landmark) before innervating ____________ and _________ muscles

A

Foramen magnum
Jugular Foramen

Sternocleidomastoid
Trapezius

39
Q

The zygomatic nerve innervates _________

A

skin of cheek bone

40
Q

The infraorbital nerve innervates __________ and ____________

A

skin (nose, lower lid, upper lip, cheek)

Mucosa (maxillary sinus, upper lip, labial gingiva)

41
Q

Anterior superior alveolar nerve innervates ____________ and __________

A

pulp (upper incisors, canines)

mucosa (maxillary sinus)

42
Q

Middle superior alveolar nerve innervates _________ and ___________

A

pulp (upper premolars)

Mucosa (maxillary sinus)

43
Q

Posterior superior alveolar nerve passes through the __________ (bony landmark)

A

pterygomaxillary fissure

44
Q

Posterior superior alveolar nerve innervates _________ and __________

A

pulp (upper molars)

Mucosa (maxillary sinus, buccal gingiva)

45
Q

_________, _________, and _________ nerves pass through the sphenopalatine foramen

A

lateral posterior superior nasal
medial posterior superior nasal
nasopalatine

46
Q

Lateral posterior superior nasal nerve innervates _____________

A

mucosa (nasal cavity)

47
Q

Medial posterior superior nasal nerve innervates ____________

A

mucosa (nasal cavity)

48
Q

Nasopalatine nerve passes through _____________ (bony landmark) distal to the sphenopalatine foramen

A

incisive fossa

49
Q

Nasopalatine nerve innervates _____________

A

mucosa (hard palate)

50
Q

Greater palatine nerve passes through the __________ (bony landmark) and innervates ______________

A

greater palatine foramen

Mucosa (nasal cavity, hard palate)
INCLUDES TASTE

51
Q

The lesser palatine nerve passes through the ____________ (bony landmark) and innervates _____________

A

lesser palatine foramen

Mucosa (soft palate)
INCLUDES TASTE

52
Q

The pharyngeal nerve passes through the ____________ (bony landmark) and innervates ______________

A

paatovaginal canal

Mucosa (nasal pharynx)

53
Q

The _________ branch of the mandibular nerve emerges from the foramen spinosum and innervates ____________

A

meningeal

cranial dura

54
Q

Deep temporal nerve innervates _________

A

temporalis

55
Q

Masseteric nerve innervates ___________ and ________

A

masseter

TMJ

56
Q

Long buccal nerve innervates _____________

A

skin/mucosa of buccal gingiva, cheek

57
Q

Lingual nerve innervates ____________

A

mucosa - anterior 2/3 of tongue (including taste), lingual gingiva, floor of oral cavity, muscles of the tongue (including a hyoid muscle)

58
Q

Incisive nerve innervates _________ and _________

A

pulp - canines and incisors

59
Q

Mental nerve innervates __________

A

skin/mucosa of lower lip and labial gingiva

60
Q

Auriculotemporal nerve innervates __________

A

skin - parotid gland, ear, temple, TMJ

61
Q

Temporal nerve innervation (2)

A

frontalis, orbicularis oculi

62
Q

Zygomatic nerve innervation (4)

A

orbicularis occuli
zygomaticus major
levator anguli oris
levator labii superioris

63
Q

Buccal nerve innervation (6)

A 
Buccinator
depressor anguli oris
levator labii superioris
nasalis
orbicularis oris
zygomaticus major
64
Q

Marginal mandibular nerve innervation (4)

A

depressor anguli oris
depressor labii inferioris
mentalis
orbicularis oris

65
Q

Cervical nerve innervation (1)

A

platysma

66
Q

Facial nerve (VII) originates in the ____________

A

pons

67
Q

The Chorda Tympani nerve of the Facial nerve passes through _______ before becoming the _________ nerve

A

petrotympanic fissure

Lingual nerve

68
Q

The Vestibulocochlear nerve (VIII) traverse the ___________ with the ___________ nerve

A 
Internal Auditory Meatus
Facial Nerve (VII)
69
Q

The vestibulocochlear nerve originates in the ___________ from the __________ and _______ nuclei

A

medulla

cochlear and vestibular nuclei (–> roots)

70
Q

All the cell bodies for the postganglionic sympathetic cells are located in the _____________

A

superior cervical ganglion

71
Q

The ___________ nerve provides taste to the posterior 1/3 of the tongue

A

Lingual branch of the glossopharyngeal nerve

72
Q

You can test the glossopharyngeal nerve function with the ___________

A

gag reflex

73
Q

Glossopharyngeal nerve originates in the ____________

A

medulla

74
Q

Vagus, Pharyngeal nerve innervates…

A

muscles of the palate/pharynx except for tensor palatini (the italian) and stylopharyngeus (innervated by glossopharyngeal)

75
Q

Vagus, Internal laryngeal nerve innervates…

A

sensory and TASTE - epiglottis –> vocal folds

[mucosa of pharynx and larynx, NOT oral cavity]

76
Q

Vagus, External laryngeal nerve innervates…

A

cricothyroid muscle

inferior constrictors

77
Q

Vagus, Recurrent laryngeal innervates…

A

Muscles of larynx except for inferior constrictors and the cricothyroid muscle (done by external laryngeal nerve)

Sensory of vocal folds –> trachea [mucosa pharynx and larynx]
[NO hyoid bone muscles]

78
Q

Vagal trunk innervates…

A

sensory to the left colic flexure

79
Q

Vagus, Auricular nerve innervates…

A

skin - ear

Anatomy III (7 decks)

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