Meninges, Ventricles, and CSF

Question 1

What are the 2 layers of dura mater

Answer 1

periosteal and meingeal

Question 2

what are the true spaces in the brain

Answer 2

epidural and subdural

Question 3

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

Answer 3

between bone and periosteal layer

Question 4

which layer dives down into large fissures

Answer 4

meningeal

Question 5

bleed adjacent to bone is called

Answer 5

epidural hematoma

Question 6

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

Answer 6

subdural hematoma

Question 7

shape of epidural hematoma

Answer 7

lens shaped

Question 8

does epidural hematoma cross hemispheres

Answer 8

yes

Question 9

shape of subdural hematoma

Answer 9

sickle-shaped

Question 10

does subdural hematoma cross hemispheres

Answer 10

no - stoped by falx cerebrum

Question 11

function of falx cerebri

Answer 11

separate L and R hemisphere

Question 12

anterior attachment of falx cerebri

Answer 12

crista galli

Question 13

posterior attachment of falx cerebri

Answer 13

internal occipital protuberance

Question 14

function of tentorial cerebellum

Answer 14

separate cerebellum from rest of brain

Question 15

what is unique about sinuses

Answer 15

no smooth muscle or valves

Question 16

where is superior sagittal sinus located

Answer 16

on upper margin

Question 17

where is inferior sagirttal sinus located

Answer 17

on free edge of falx cerebri

Question 18

what does inferior sagittal sinus drain into

Answer 18

straight sinus

Question 19

what do all the sinuses drain into

Answer 19

confluence of sinuses

Question 20

where is cavernous sinus located

Answer 20

front

Question 21

arachnoid mater

Answer 21

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

Question 22

collagenous traveculae

Answer 22

form web-like structure

Question 23

subarachnoid mater

Answer 23

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

Question 24

subarachnoid cisterns

Answer 24

fluid filled spaces that are overlaid by arachnoid mater

Question 25

interpedunucular cisterm

Answer 25

lies between 2 peduncles

Question 26

pontine cistern

Answer 26

at junction between pons and medulla

Question 27

superior cistern (cistern of great cerebral vein)

Answer 27

between cerebellum and occipital lobe

Question 28

arachnoid villus

Answer 28

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

Question 29

what does arachnoid villus look like in gross

Answer 29

granules

Question 30

pia mater

Answer 30

continues very closes along entire surface of brain

Question 31

lateral ventricles

Answer 31

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

Question 32

what are teh components of the lateral ventricle

Answer 32

``` frontal/anterior horn body occipital/posterior horn atrium temporal horn ```

Question 33

interventricular foramen of monro

Answer 33

drains into thrid ventrical

Question 34

how does CSF drain

Answer 34

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

Question 35

where is 3rd ventricle located

Answer 35

midline region of diencephalon

Question 36

where is 4th ventricle located

Answer 36

snwached between cerebllum and pons

Question 37

cerebral aqueduct

Answer 37

narrowest component of 3rd ventricle

Question 38

what can cause a blocked at the cerebral aquaduct

Answer 38

choroid plexus

Question 39

choroid plexus

Answer 39

highly convoluted and vascular membranous material that produces and secretes CSF

Question 40

function of CSF

Answer 40

supportive control of extracellular fluid provide route for neuoactive hormones

Question 41

should you have RBCs in the CSF

Answer 41

NOPE

Question 42

where is choroid plexus found

Answer 42

in all ventricles

Question 43

blood brain barrier

Answer 43

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

Question 44

structure of blood brain barrier

Answer 44

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

Question 45

what are the initial barrier in BBB

Answer 45

tight junctions

Question 46

where is the true blood brain barrier

Answer 46

glial level