Cranial Fossa Flashcards

1
Q

3 cranial meninges

A

dura mater
arachnoid space
pia mater

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2
Q

2 layers of dura mater

A

endosteal layer
meningeal layer

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3
Q

contains CSF

A

subarchnoid space

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4
Q

separates the 2 cerebral hemispheres

A

falx cerebri

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5
Q

attachment of falx cerebri

A

crista galli

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6
Q

separates cerebral hemispheres from cerebellum

A

tentorum cerebelli

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7
Q

helps move CSF to the bloodstream

A

superior sagittal sinus

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8
Q

bacteria from scalp can spread to superior sagittal sinus through what

A

emissary vein

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9
Q

bacteria from face can spread to what sinus through what vein

A

vein: superior ophthalmic v
sinus: cavernous sinus

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10
Q

sensory to meninges of anterior cranial fossa

A

CN V1

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11
Q

sensory to meninges of middle cranial fossa

A

CN V2 and CN V3

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12
Q

sensory to meninges of posterior cranial fossa

A

CN IX, CN X, and C1-C3

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13
Q

2 main parts of ethmoid bone

A

crista galli
cribriform plate

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14
Q

nerves that pass through superior orbital fissure

A

CN III, CN IV, CN V, CN VI

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15
Q

what 3 things can happen from cribriform plate fracture

A

anosmia
CSF rhinorrhea
sinusitis

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16
Q

foramen crossed by internal carotid a

A

foramen lacerum

17
Q

internal carotid a passed through this

A

carotid canal

18
Q

hypophyseal fossa (aka)

A

sella turcica

19
Q

structures affected first in cavernous sinus thrombosis

A

internal carotid a
CN VI (abducens)

20
Q

lateral wall of cavernous sinus contains what nerves

A

CN III
CN IV
CN V1
CN V2

21
Q

internal acoustic meatus contains what nerves

A

CN VII
CN VIII

22
Q

internal jugular foramen contains what nerves

A

internal jugular v
CN IX
CN X
CN XI

23
Q

CN XII through what hole of base of skull

A

hypoglossal canal

24
Q

this contains the spinal cord

A

foramen magnum

25
Q

sign of temporal bone fracture

A

CSF in middle ear

Battle’s sign

26
Q

sign of ethmoid bone fracture

A

CSF drip from nose

raccoon eyes

27
Q

characteristics of pterion skull fracture

A

lacerate anterior middle meningeal a

results in epidural hematoma. (looks like football shape on side of brain)

28
Q

thinnest part of skull

A

pterion