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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
Cranial nerve pneumonic for sensory and motor
Some Say Marry Money, But My Brother Says Big Boobs Matter More (S= Sensory, M= Motor, B= Both)
26
The long ciliary nerve innervates __________
cornea
27
The short ciliary nerve innervates ___________ and passes through the ____________
``` cornea ciliary ganglion (where postganglionic parasympathetic axons arise) ```
28
The posterior ethmoidal nerve innervates
the sinus
29
External nasal nerve innervates ___________
skin (nose)
30
Internal nasal nerve innervates ___________
mucosa (nasal cavity)
31
Infratrochlear nerve innervates ____________
skin (nose)
32
The supraorbital nerve passes through the _________ (bony landmark) and innervates ___________
supraorbital foramen | skin (lid, scalp, forehead)
33
The supratrochlear nerve innervates ____________
skin (lid, scalp, forehead)
34
The lacrimal nerve innervates ________________
skin (lid scalp, forehead)
35
Trigeminal nerves originate from the _____________
pons
36
Spinal accessory nerve (XI) originates in _______________
C1-C5 spinal accessory nucleus
37
Motor cell bodies of the spinal accessory nerve (XI) originate in ___________
C1-C5 spinal accessory nucleus
38
Spinal accessory nerve passes through __________, then __________ (bony landmark) before innervating ____________ and _________ muscles
Foramen magnum Jugular Foramen Sternocleidomastoid Trapezius
39
The zygomatic nerve innervates _________
skin of cheek bone
40
The infraorbital nerve innervates __________ and ____________
skin (nose, lower lid, upper lip, cheek) | Mucosa (maxillary sinus, upper lip, labial gingiva)
41
Anterior superior alveolar nerve innervates ____________ and __________
pulp (upper incisors, canines) | mucosa (maxillary sinus)
42
Middle superior alveolar nerve innervates _________ and ___________
pulp (upper premolars) | Mucosa (maxillary sinus)
43
Posterior superior alveolar nerve passes through the __________ (bony landmark)
pterygomaxillary fissure
44
Posterior superior alveolar nerve innervates _________ and __________
pulp (upper molars) | Mucosa (maxillary sinus, buccal gingiva)
45
_________, _________, and _________ nerves pass through the sphenopalatine foramen
lateral posterior superior nasal medial posterior superior nasal nasopalatine
46
Lateral posterior superior nasal nerve innervates _____________
mucosa (nasal cavity)
47
Medial posterior superior nasal nerve innervates ____________
mucosa (nasal cavity)
48
Nasopalatine nerve passes through _____________ (bony landmark) distal to the sphenopalatine foramen
incisive fossa
49
Nasopalatine nerve innervates _____________
mucosa (hard palate)
50
Greater palatine nerve passes through the __________ (bony landmark) and innervates ______________
greater palatine foramen Mucosa (nasal cavity, hard palate) INCLUDES TASTE
51
The lesser palatine nerve passes through the ____________ (bony landmark) and innervates _____________
lesser palatine foramen Mucosa (soft palate) INCLUDES TASTE
52
The pharyngeal nerve passes through the ____________ (bony landmark) and innervates ______________
paatovaginal canal Mucosa (nasal pharynx)
53
The _________ branch of the mandibular nerve emerges from the foramen spinosum and innervates ____________
meningeal | cranial dura
54
Deep temporal nerve innervates _________
temporalis
55
Masseteric nerve innervates ___________ and ________
masseter | TMJ
56
Long buccal nerve innervates _____________
skin/mucosa of buccal gingiva, cheek
57
Lingual nerve innervates ____________
mucosa - anterior 2/3 of tongue (including taste), lingual gingiva, floor of oral cavity, muscles of the tongue (including a hyoid muscle)
58
Incisive nerve innervates _________ and _________
pulp - canines and incisors
59
Mental nerve innervates __________
skin/mucosa of lower lip and labial gingiva
60
Auriculotemporal nerve innervates __________
skin - parotid gland, ear, temple, TMJ
61
Temporal nerve innervation (2)
frontalis, orbicularis oculi
62
Zygomatic nerve innervation (4)
orbicularis occuli zygomaticus major levator anguli oris levator labii superioris
63
Buccal nerve innervation (6)
``` Buccinator depressor anguli oris levator labii superioris nasalis orbicularis oris zygomaticus major ```
64
Marginal mandibular nerve innervation (4)
depressor anguli oris depressor labii inferioris mentalis orbicularis oris
65
Cervical nerve innervation (1)
platysma
66
Facial nerve (VII) originates in the ____________
pons
67
The Chorda Tympani nerve of the Facial nerve passes through _______ before becoming the _________ nerve
petrotympanic fissure | Lingual nerve
68
The Vestibulocochlear nerve (VIII) traverse the ___________ with the ___________ nerve
``` Internal Auditory Meatus Facial Nerve (VII) ```
69
The vestibulocochlear nerve originates in the ___________ from the __________ and _______ nuclei
medulla | cochlear and vestibular nuclei (--> roots)
70
All the cell bodies for the postganglionic sympathetic cells are located in the _____________
superior cervical ganglion
71
The ___________ nerve provides taste to the posterior 1/3 of the tongue
Lingual branch of the glossopharyngeal nerve
72
You can test the glossopharyngeal nerve function with the ___________
gag reflex
73
Glossopharyngeal nerve originates in the ____________
medulla
74
Vagus, Pharyngeal nerve innervates...
muscles of the palate/pharynx except for tensor palatini (the italian) and stylopharyngeus (innervated by glossopharyngeal)
75
Vagus, Internal laryngeal nerve innervates...
sensory and TASTE - epiglottis --> vocal folds | [mucosa of pharynx and larynx, NOT oral cavity]
76
Vagus, External laryngeal nerve innervates...
cricothyroid muscle | inferior constrictors
77
Vagus, Recurrent laryngeal innervates...
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
Vagal trunk innervates...
sensory to the left colic flexure
79
Vagus, Auricular nerve innervates...
skin - ear

Anatomy III (7 decks)

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