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Neuro Exam I > Meninges, Ventricles, and CSF > Flashcards

Meninges, Ventricles, and CSF Flashcards

1
Q

What are the 2 layers of dura mater

A

periosteal and meingeal

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2
Q

what are the true spaces in the brain

A

epidural and subdural

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3
Q

if you get a bleed from the middle minigeal a where would it be located

A

between bone and periosteal layer

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4
Q

which layer dives down into large fissures

A

meningeal

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5
Q

bleed adjacent to bone is called

A

epidural hematoma

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6
Q

bleed in space lying between mningeal dura adn arachnoid mater is called

A

subdural hematoma

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7
Q

shape of epidural hematoma

A

lens shaped

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8
Q

does epidural hematoma cross hemispheres

A

yes

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9
Q

shape of subdural hematoma

A

sickle-shaped

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10
Q

does subdural hematoma cross hemispheres

A

no - stoped by falx cerebrum

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11
Q

function of falx cerebri

A

separate L and R hemisphere

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12
Q

anterior attachment of falx cerebri

A

crista galli

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13
Q

posterior attachment of falx cerebri

A

internal occipital protuberance

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14
Q

function of tentorial cerebellum

A

separate cerebellum from rest of brain

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15
Q

what is unique about sinuses

A

no smooth muscle or valves

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16
Q

where is superior sagittal sinus located

A

on upper margin

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17
Q

where is inferior sagirttal sinus located

A

on free edge of falx cerebri

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18
Q

what does inferior sagittal sinus drain into

A

straight sinus

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19
Q

what do all the sinuses drain into

A

confluence of sinuses

20
Q

where is cavernous sinus located

A

front

21
Q

arachnoid mater

A

translucent layer that lies allong surface of cerebral cortex, does not enter sulci

22
Q

collagenous traveculae

A

form web-like structure

23
Q

subarachnoid mater

A

goes over the surface of brain but doesn’t dive into sulci, but certain areas have large gaps

24
Q

subarachnoid cisterns

A

fluid filled spaces that are overlaid by arachnoid mater

25
Q

interpedunucular cisterm

A

lies between 2 peduncles

26
Q

pontine cistern

A

at junction between pons and medulla

27
Q

superior cistern (cistern of great cerebral vein)

A

between cerebellum and occipital lobe

28
Q

arachnoid villus

A

specialized organ that helps expunge extra CSF to maintain hemeostasis and keep system from becoming too pressurixes

29
Q

what does arachnoid villus look like in gross

A

granules

30
Q

pia mater

A

continues very closes along entire surface of brain

31
Q

lateral ventricles

A

C-shaped course through all the lobes of the cerebral hemispheres

32
Q

what are teh components of the lateral ventricle

A 
frontal/anterior horn
body
occipital/posterior horn
atrium
temporal horn
33
Q

interventricular foramen of monro

A

drains into thrid ventrical

34
Q

how does CSF drain

A

through interventricular forman of monro to 3rd ventricle to cerebral aqueduct to 4th ventricle to surfaces around the rain

35
Q

where is 3rd ventricle located

A

midline region of diencephalon

36
Q

where is 4th ventricle located

A

snwached between cerebllum and pons

37
Q

cerebral aqueduct

A

narrowest component of 3rd ventricle

38
Q

what can cause a blocked at the cerebral aquaduct

A

choroid plexus

39
Q

choroid plexus

A

highly convoluted and vascular membranous material that produces and secretes CSF

40
Q

function of CSF

A

supportive
control of extracellular fluid
provide route for neuoactive hormones

41
Q

should you have RBCs in the CSF

A

NOPE

42
Q

where is choroid plexus found

A

in all ventricles

43
Q

blood brain barrier

A

anatomical and physiologial complex that controls movement of substances from general extracellular fluid of body to the extracellular fluid

44
Q

structure of blood brain barrier

A

blood-arachnoid layer
blood - CSF barrier
true blood brain barrier

45
Q

what are the initial barrier in BBB

A

tight junctions

46
Q

where is the true blood brain barrier

A

glial level

Neuro Exam I (10 decks)

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