Kaplan 3.5.06: Meninges, Ventricles, Csf

Front 1

3 meninges from out to in

Back 1

dura
arachnoid
pia

Front 2

there are ___ layers of dura

Back 2

2

Front 3

the 2 layers of dura

Back 3

periosteal
meningeal

Front 4

the 2 layers of dura separate at ___

Back 4

dural septa

Front 5

3 dural septa

Back 5

falx cerebri
tentorium cerebelli
diaphragma sellae

Front 6

T/F: the arachnoid enters sulci

Back 6

false

Front 7

there are ___ layers of arachnoid

Back 7

1

Front 8

T/F: the pia enters sulci

Back 8

true

Front 9

there are ___ layers of pia

Back 9

2

Front 10

pia follows ___ as they penetrate CNS
this creates a ___.

Back 10

blood vessels
perivascular space

Front 11

superior sagittal sinus is between ___ and ___

Back 11

periosteal dura
meningeal dura

Front 12

inferior sagittal sinus is between ___ and ___

Back 12

meningeal dura
meningeal dura

Front 13

scalp veins drain into ___ via ___

Back 13

superior sagittal sinus
emissary veins

Front 14

main source of blood for meninges
this enters skull via ___

Back 14

middle meningeal artery
foramen spinosum

Front 15

sensation from dura is via ___ branches of ___ nerve

Back 15

meningeal
trigeminal

Front 16

meningeal sensation of anterior fossa is via branches ___ of CN5
meningeal sensation of middle fossa is via branches ___ of CN5
meningeal sensation of posterior fossa is via branches ___ of CN5

Back 16

2, 3
2, 3
1 (from tentorium)

Front 17

meningial sensation via CN V3 leaves cranium via ___ and re-enters at ___

Back 17

foramen ovale
foramen spinosum

Front 18

medial aspects of lateral ventricles are separated by ___, which is on the midline anterior to ___

Back 18

septum pellucidum
the fornix

Front 19

lateral ventricles connect to 3rd ventricle via ___

Back 19

foramina of Monro

Front 20

3rd ventricle connects with 4th ventricle via ___

Back 20

cerebral aqueduct (of Sylvius)

Front 21

4th ventricle communicates with subarachnoid space via ___ medially and ___ laterally

Back 21

foramen of Magendie
foramina of Luschka

Front 22

4th ventricle becomes ___

Back 22

central canal of SC

Front 23

CSF is produced by ___, which is present in ___.

Back 23

choroid plexus
all ventricles

Front 24

CSF returns to circulation via ___

Back 24

arachnoid granulations

Front 25

2 kinds of hydrocephalus

Back 25

communicating
noncommunicating

Front 26

communicating hydrocephalus is caused by ___. 1 specific cause is ___.

Back 26

CSF hypersecretion
choroid plexus papilloma

Front 27

noncommunicating hydrocephalus is caused by ___

Back 27

obstruction in ventricles

Front 28

meninges affected in meningitis

Back 28

arachnoid
pia

Front 29

circumventricular organs are special because they are perfused by ___ instead of ___.
there are ___ circumventricular organs.

Back 29

fenestrated capillaries
capillaries with continuous endothelium with BBB
7

Front 30

5 most important circumventricular organs

Back 30

pineal gland
neurohypophysis
subfornical organ
organum vasculosum of the lamina terminalis (OVLT)
area postrema of medulla

Front 31

pineal gland does ___. this controlls ___

Back 31

melatonin secretion
circadian rhythm

Front 32

subfornical organ does ___ (2)
in response to these stimuli it does ___ (2)

Back 32

sensing Ang II
osmoception
stimulates release of ADH
stimulates thirst

Front 33

area postrema does ___

Back 33

emesis

Front 34

OVLT does ___
it stimulates ___

Back 34

osmoception
ADH release