Quiz 3 Flashcards

1
Q

Base of skull is made up which bones

A

lesser and greater wing of sphenoid

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2
Q

greater and lesser wing of sphenoid is separated by what?

A

superior orbital fissure

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3
Q

Foramen rotundum is in which skull fossa ant, middle , or posterior

A

anterior

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4
Q

Foramen ovale is in which skull fossa ant, middle , or posterior

A

anterior

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5
Q

Optic canal is in which skull fossa ant, middle , or posterior

A

anterior

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6
Q

foramen lacerum is in which skull fossa ant, middle , or posterior

A

middle

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7
Q

which bone associated w/ middle fossa?

A

temporal

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8
Q

internal acoustin meatus is in which skull fossa ant, middle , or posterior

A

posterior

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9
Q

jugular foramen is in which skull fossa ant, middle , or posterior

A

posterior b/w temporal and occipital bone

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10
Q

hypoglossal canal is in which skull fossa ant, middle , or posterior

A

posterior

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11
Q

oculomotor nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord

A

midbrain

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12
Q

trochlear nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord

A

mid brain

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13
Q

trigeminal nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord

A

pons

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14
Q

abducens nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord

A

Where pons meets medulla

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15
Q

facial nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord

A

where pons meets medulla

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16
Q

vestibulocochlear nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord

A

where pons meets medulla

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17
Q

hypoglossal nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord

A

medulla

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18
Q

Glossopharyngeal nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord

A

medulla

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19
Q

vagus nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord

A

medulla

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20
Q

accessory nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord

A

spinal cord

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21
Q

CN1 comes out of which foramina?

A

cribiform plate

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22
Q

CN2 comes out of which foramina?

A

optic canal

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23
Q

CN 3comes out of which foramina?

A

superior orbital fissure

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24
Q

CN 4 comes out of which foramina?

A

superior orbital fissure

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25
Q

CN 6 comes out of which foramina

A

superior orbital fissure

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26
Q

CN V1 comes out of which foramina

A

superior orbital fissure

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27
Q

CN V2 comes out of which foramina

A

foramen rotundum

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28
Q

CN V3 comes out of which foramina

A

foramen ovale

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29
Q

middle meningeal artery comes out of which foramina?

A

foramen spinosum

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30
Q

CN VII comes out of which foramina?

A

internal acoustic meatus

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31
Q

CN VIII comes out of which foramina?

A

internal acoustic meatus

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32
Q

CN 9 comes out of which foramen

A

jugular

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33
Q

CN 10 comes out of which foramina?

A

jugular

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34
Q

CN 11 comes out through which foramina/

A

jugular

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35
Q

CN 11 leaves in through which foramen?

A

magnum

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36
Q

CN 12 comes out of which foramina?

A

hypoglossal canal

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37
Q

Which vessels associated with dura?

A

middle meningeal

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38
Q

Which vessels associated with arachnoid

A

bridging veins

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39
Q

Which vessels associated with pia

A

major blood vessels of brain

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40
Q

Which dural reflection separates 2 cerebral hemispheres?

A

Falx Cerebri

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41
Q

Which dural reflection separates occipital lobe from cerebellum

A

Tentorium Cerebelli

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42
Q

arachnoid granulations are associated with which structure

A

bridging veins/ superior sagittal sinus

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43
Q

which kind of intracranial hemorrhage produces egg shaped bulge?

A

epidural

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44
Q

epidural hemorrhage caused by what and onset of symptoms takes how long?

A

tearing of meningeal artery

within hours

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45
Q

subdural hemorrhage caused by what and onset of symptoms takes how long?

A

tearing of bridging veins

days to weeks b/c venous blood oozes slowly

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46
Q

subarachnoid hemorrhagecaused by what and onset of symptoms takes how long?

A

weakened blood vessels rupture and mix with CSF

- sudden onset

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47
Q

what is it called when pupil is smaller than normal

A

miosis

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48
Q

what is it called when pupil is larger than normal

A

mydriasis

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49
Q

3 layers of eye

A
  • fibrous tunic- cornea and sclera
  • uveal layer– mostly choroid includes ciliary body and iris
  • retina
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50
Q

anterior chamber from where to where

A

cornea to iris

51
Q

what’ characteristic of synthesis of vitreous humor?

A

present from birth

not synthesized or removed

52
Q

5 layers of cornea

A
Epithelium 
Bowman's membrane
Stroma
Descemet's Membrane
Endothelium
53
Q

what is bowman’s membrane made up of

A

collagen w/o cells

54
Q

Stroma is made up of what

A

layers of collagen

fibers are very organized

55
Q

Descemet’s membrane is made up of what

A

fine collagen

56
Q

Fxn of Corneal Endothelium

A

hydrates stroma

maintains clarity

57
Q

corneal epithelium is characterized as what kind of epi?

A

stratified squamous

58
Q

Fxn of choroid of uveal layer

A

nourishes outer layer of retina

59
Q

where is aqueous humor made?

A

epithelium of ciliary body

60
Q

Iris is mostly from which layer

A

uveal

61
Q

Iris’s epithelium comes from where

A

retina

62
Q

5 layres of Iris

A

Epithelium/ Dilator Pupillae ( inner layer always pigmented)
irregular outer layer w/ pigment and fibroblasts
-CT
-Vascular with loose CT
-Sphincter pupillae

63
Q

Corneal Reflex which nerves

A

opthalmic via nasociliary connected to facial nerve which stimulates orbicularis oculi

64
Q

Light reflex from which nerve

A

optic nerve, brainstem, oculomotor

65
Q

3 layers of lens

A

capsule
subcapsular epi
lens fibers

66
Q

technical term for farsighted

A

hyperopia

67
Q

in hyperopia where is focus?

A

behind retina

68
Q

definition of presbyopia

A

lens b/c less elastic

69
Q

which layer is inner layer of retina pigmented or neural?

A

neural

70
Q

3 layers of neural retina

A

ganglion
biopolar
inner/outer (rods/cones)

71
Q

which portion outer/inner distinguishes b/w rods and cones

A

outer

72
Q

where in is light detected

A

outer layer

73
Q

opthalmic artery travels through which foramina?

A

optic canal

74
Q

in orbit zygomatic branch of V2 travels through which foramina

A

inferior orbital fissure

75
Q

opthalmic veins travel through which foramina

A

superior orbital fissure

76
Q

actions of sup rectus

A

elevate intort adduct

77
Q

actions of inf oblique

A

elevate extort abduct

78
Q

actions of inf rectus

A

depress extort adduct

79
Q

actions of sup obliuqe

A

depress intort abduct

80
Q

How do you isolate obliques adduction or abduction

A

adduct

81
Q

how do you isolate inf/sup rectus adduction or abduction

A

abduction

82
Q

frontal nerve travels on top of which nerve

A

levator pal.

83
Q

3 branches of opthalmic nerve

A

Nasociliary, Frontal, Lacrimal

84
Q

2 branches of frontal

A

supraorbital

supratrochlear

85
Q

preganglionic fibers of parasympathetics of the eye travel through which nerve
- go to which ganglion

A

oculomotor

ciliary ganglion

86
Q

postganglionic fibers of parasympathetics of the eye travel through which nerve

A

short ciliary

87
Q

how do sympathetics in the eye travel

A

pregnaglion—upper thoracic spinal cord, ventral roots, sympathetic chain, superior sympathetic ganglion, postganglionc follow internal cartotid

88
Q

what is a chalazion?

A

block Meibomian gland

89
Q

Meibomian gland is where

A

tarsal plate of eye lid

90
Q

blockage of ciliary gland is called what

A

style and hordiolum

91
Q

what is pingecula

A

yellow white deposit by limbus formed by thickened connective tissue

92
Q

what is pterygium

A

vascular inflammatory tissue growing from medial side of the eye

93
Q

what kind of gland is lacrimal gland

A

compound tubuloalveor w/ serous acini

94
Q

what induces lens placode?

A

optic vesicle induces surface ectoderm to b/c lens placode

95
Q

covering eye are derived from what

A

neural crest cells

96
Q

Temporalis muscle inserts where

A

coronoid process of mandible

97
Q

Masseter muscle inserts where

A

lateral surface of ramus and angle

98
Q

Medial pterygoid muscle insets wehre

A

medial surace of ramus and angle

99
Q

temporalis originates from where?

A

temporal fossa

100
Q

muscles of mastication are innervated by

A

CN V3

101
Q

pterygoids originate from where?

A

lateral pterygoid plate

102
Q

lateral pterygoid inserts where?

A

capsule and articualr disk of TMJ

103
Q

Which muscles are involved in elevation

A

temporalis, masseter, medial pterygoid

104
Q

Which muscles are involved in depression

A

gravity, mylohyoid, digastric, geniohyoid

105
Q

Which muscles are invovled in protrusion

A

lateral pterygoid

106
Q

retraction

A

posterior, horizontal fibers of termporalis

107
Q

actions of TMJ during elevation

A

rotates and slides infero-anteriorly

108
Q

Sphenomadibular ligamen runs how?

A

from spine of sphenoid to lingula of madibular ramus

109
Q

fxn of sphenomadibular ligament

A

maintains the mandibular condyle in position

110
Q

when is sphenomandibular ligament fully taut

A

when jaw is half open

111
Q

2 branche of maxillary that are important

A

middle meningeal

inferior alveolar

112
Q

course of inferior alveolar a

A

travels inferiorly through mandibular foramen, supplies teeth and soft tissue in mandible , exits through mental foramen

113
Q

5 branches of mandibular nerve

A
Inferior Alveolar
Lingual
Auriculotemporal
Meningeal
Buccal
114
Q

mnemonic for nerves of mandibular branch

A

I Like Apples, Men, Buccaneers

115
Q

Path of parasympathetics in infratemporal fosa

A

travel in facial nerve and chorda tympani,
hitchhike on lingual nerve,
snpase in submandibular ganglion
postganglionic secretomotor fibers travel to submandibular and sublingual salivary glands

116
Q

route of afferent sense fibers

A

lingual
join chorda tympani
travel to join CN 7 where pseudounipolar cell bodies are ( geniculate ganglion)

117
Q

parasympathetics to parotid

A
glossopharyngeal
tympanic nerve
lesser petrosal
foramen ovale
synapse in otic ganglion
postganglion travel on auriculotemporal
118
Q

inferior alveolar n innervates what

  • motor
  • sensory
A

-mylohyoid and anterior belly of digastric

  • mandibular teeth
  • and lower lip/chin as mental nerve
119
Q

lingual n innervates what

  • motor
  • sensory
A

no motor

anterior 2/3 of tongue and floor of mouth

120
Q

auriculotemporal n innervates what

  • motor
  • sensory
A

-secretorymotor postganglionic parasymp to parotid
temporal skin, ear, TMJ, parotid
-travels w/ superifical temporal

121
Q

Meningeal n innervates what

  • motor
  • sensory
A
  • no motor

- supplies dura of middle cranial fossa

122
Q

Buccal n innervates what

  • motor
  • sensory
A

skin, oral mucosa, gingiva

123
Q

venous drainage of face

A

opthalmic and facial veins drain into ptyergoid venus plexus
ptyergoid plexus drains into maxillary ven
maxillary joins superficial vein to become retromandibular vein
or ptyergoid plexus has direct valvless drainage to cavernous sinus–route for for infection