Quiz 3 Flashcards
(123 cards)
1
Q
Base of skull is made up which bones
A
lesser and greater wing of sphenoid
2
Q
greater and lesser wing of sphenoid is separated by what?
A
superior orbital fissure
3
Q
Foramen rotundum is in which skull fossa ant, middle , or posterior
A
anterior
4
Q
Foramen ovale is in which skull fossa ant, middle , or posterior
A
anterior
5
Q
Optic canal is in which skull fossa ant, middle , or posterior
A
anterior
6
Q
foramen lacerum is in which skull fossa ant, middle , or posterior
A
middle
7
Q
which bone associated w/ middle fossa?
A
temporal
8
Q
internal acoustin meatus is in which skull fossa ant, middle , or posterior
A
posterior
9
Q
jugular foramen is in which skull fossa ant, middle , or posterior
A
posterior b/w temporal and occipital bone
10
Q
hypoglossal canal is in which skull fossa ant, middle , or posterior
A
posterior
11
Q
oculomotor nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord
A
midbrain
12
Q
trochlear nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord
A
mid brain
13
Q
trigeminal nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord
A
pons
14
Q
abducens nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord
A
Where pons meets medulla
15
Q
facial nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord
A
where pons meets medulla
16
Q
vestibulocochlear nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord
A
where pons meets medulla
17
Q
hypoglossal nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord
A
medulla
18
Q
Glossopharyngeal nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord
A
medulla
19
Q
vagus nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord
A
medulla
20
Q
accessory nerve comes from which part of brainstem? Midbrain, pons, medulla, spinal cord
A
spinal cord
21
Q
CN1 comes out of which foramina?
A
cribiform plate
22
Q
CN2 comes out of which foramina?
A
optic canal
23
Q
CN 3comes out of which foramina?
A
superior orbital fissure
24
Q
CN 4 comes out of which foramina?
A
superior orbital fissure
25
CN 6 comes out of which foramina
superior orbital fissure
26
CN V1 comes out of which foramina
superior orbital fissure
27
CN V2 comes out of which foramina
foramen rotundum
28
CN V3 comes out of which foramina
foramen ovale
29
middle meningeal artery comes out of which foramina?
foramen spinosum
30
CN VII comes out of which foramina?
internal acoustic meatus
31
CN VIII comes out of which foramina?
internal acoustic meatus
32
CN 9 comes out of which foramen
jugular
33
CN 10 comes out of which foramina?
jugular
34
CN 11 comes out through which foramina/
jugular
35
CN 11 leaves in through which foramen?
magnum
36
CN 12 comes out of which foramina?
hypoglossal canal
37
Which vessels associated with dura?
middle meningeal
38
Which vessels associated with arachnoid
bridging veins
39
Which vessels associated with pia
major blood vessels of brain
40
Which dural reflection separates 2 cerebral hemispheres?
Falx Cerebri
41
Which dural reflection separates occipital lobe from cerebellum
Tentorium Cerebelli
42
arachnoid granulations are associated with which structure
bridging veins/ superior sagittal sinus
43
which kind of intracranial hemorrhage produces egg shaped bulge?
epidural
44
epidural hemorrhage caused by what and onset of symptoms takes how long?
tearing of meningeal artery
| within hours
45
subdural hemorrhage caused by what and onset of symptoms takes how long?
tearing of bridging veins
| days to weeks b/c venous blood oozes slowly
46
subarachnoid hemorrhagecaused by what and onset of symptoms takes how long?
weakened blood vessels rupture and mix with CSF
| - sudden onset
47
what is it called when pupil is smaller than normal
miosis
48
what is it called when pupil is larger than normal
mydriasis
49
3 layers of eye
- fibrous tunic- cornea and sclera
- uveal layer-- mostly choroid includes ciliary body and iris
- retina
50
anterior chamber from where to where
cornea to iris
51
what' characteristic of synthesis of vitreous humor?
present from birth
| not synthesized or removed
52
5 layers of cornea
```
Epithelium
Bowman's membrane
Stroma
Descemet's Membrane
Endothelium
```
53
what is bowman's membrane made up of
collagen w/o cells
54
Stroma is made up of what
layers of collagen
| fibers are very organized
55
Descemet's membrane is made up of what
fine collagen
56
Fxn of Corneal Endothelium
hydrates stroma
| maintains clarity
57
corneal epithelium is characterized as what kind of epi?
stratified squamous
58
Fxn of choroid of uveal layer
nourishes outer layer of retina
59
where is aqueous humor made?
epithelium of ciliary body
60
Iris is mostly from which layer
uveal
61
Iris's epithelium comes from where
retina
62
5 layres of Iris
Epithelium/ Dilator Pupillae ( inner layer always pigmented)
irregular outer layer w/ pigment and fibroblasts
-CT
-Vascular with loose CT
-Sphincter pupillae
63
Corneal Reflex which nerves
opthalmic via nasociliary connected to facial nerve which stimulates orbicularis oculi
64
Light reflex from which nerve
optic nerve, brainstem, oculomotor
65
3 layers of lens
capsule
subcapsular epi
lens fibers
66
technical term for farsighted
hyperopia
67
in hyperopia where is focus?
behind retina
68
definition of presbyopia
lens b/c less elastic
69
which layer is inner layer of retina pigmented or neural?
neural
70
3 layers of neural retina
ganglion
biopolar
inner/outer (rods/cones)
71
which portion outer/inner distinguishes b/w rods and cones
outer
72
where in is light detected
outer layer
73
opthalmic artery travels through which foramina?
optic canal
74
in orbit zygomatic branch of V2 travels through which foramina
inferior orbital fissure
75
opthalmic veins travel through which foramina
superior orbital fissure
76
actions of sup rectus
elevate intort adduct
77
actions of inf oblique
elevate extort abduct
78
actions of inf rectus
depress extort adduct
79
actions of sup obliuqe
depress intort abduct
80
How do you isolate obliques adduction or abduction
adduct
81
how do you isolate inf/sup rectus adduction or abduction
abduction
82
frontal nerve travels on top of which nerve
levator pal.
83
3 branches of opthalmic nerve
Nasociliary, Frontal, Lacrimal
84
2 branches of frontal
supraorbital
| supratrochlear
85
preganglionic fibers of parasympathetics of the eye travel through which nerve
- go to which ganglion
oculomotor
| ciliary ganglion
86
postganglionic fibers of parasympathetics of the eye travel through which nerve
short ciliary
87
how do sympathetics in the eye travel
pregnaglion---upper thoracic spinal cord, ventral roots, sympathetic chain, superior sympathetic ganglion, postganglionc follow internal cartotid
88
what is a chalazion?
block Meibomian gland
89
Meibomian gland is where
tarsal plate of eye lid
90
blockage of ciliary gland is called what
style and hordiolum
91
what is pingecula
yellow white deposit by limbus formed by thickened connective tissue
92
what is pterygium
vascular inflammatory tissue growing from medial side of the eye
93
what kind of gland is lacrimal gland
compound tubuloalveor w/ serous acini
94
what induces lens placode?
optic vesicle induces surface ectoderm to b/c lens placode
95
covering eye are derived from what
neural crest cells
96
Temporalis muscle inserts where
coronoid process of mandible
97
Masseter muscle inserts where
lateral surface of ramus and angle
98
Medial pterygoid muscle insets wehre
medial surace of ramus and angle
99
temporalis originates from where?
temporal fossa
100
muscles of mastication are innervated by
CN V3
101
pterygoids originate from where?
lateral pterygoid plate
102
lateral pterygoid inserts where?
capsule and articualr disk of TMJ
103
Which muscles are involved in elevation
temporalis, masseter, medial pterygoid
104
Which muscles are involved in depression
gravity, mylohyoid, digastric, geniohyoid
105
Which muscles are invovled in protrusion
lateral pterygoid
106
retraction
posterior, horizontal fibers of termporalis
107
actions of TMJ during elevation
rotates and slides infero-anteriorly
108
Sphenomadibular ligamen runs how?
from spine of sphenoid to lingula of madibular ramus
109
fxn of sphenomadibular ligament
maintains the mandibular condyle in position
110
when is sphenomandibular ligament fully taut
when jaw is half open
111
2 branche of maxillary that are important
middle meningeal
| inferior alveolar
112
course of inferior alveolar a
travels inferiorly through mandibular foramen, supplies teeth and soft tissue in mandible , exits through mental foramen
113
5 branches of mandibular nerve
```
Inferior Alveolar
Lingual
Auriculotemporal
Meningeal
Buccal
```
114
mnemonic for nerves of mandibular branch
I Like Apples, Men, Buccaneers
115
Path of parasympathetics in infratemporal fosa
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
route of afferent sense fibers
lingual
join chorda tympani
travel to join CN 7 where pseudounipolar cell bodies are ( geniculate ganglion)
117
parasympathetics to parotid
```
glossopharyngeal
tympanic nerve
lesser petrosal
foramen ovale
synapse in otic ganglion
postganglion travel on auriculotemporal
```
118
inferior alveolar n innervates what
- motor
- sensory
-mylohyoid and anterior belly of digastric
- mandibular teeth
- and lower lip/chin as mental nerve
119
lingual n innervates what
- motor
- sensory
no motor
| anterior 2/3 of tongue and floor of mouth
120
auriculotemporal n innervates what
- motor
- sensory
-secretorymotor postganglionic parasymp to parotid
temporal skin, ear, TMJ, parotid
-travels w/ superifical temporal
121
Meningeal n innervates what
- motor
- sensory
- no motor
| - supplies dura of middle cranial fossa
122
Buccal n innervates what
- motor
- sensory
skin, oral mucosa, gingiva
123
venous drainage of face
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
