Lateral Ventricle + Cerebral meninges + CSF circulation Flashcards
بسم الله الرحمن الرحيم
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the inner layre of dura is that connected to ?
Spinal dura
Subarachnois space contains
CSF AND ARTIETIS SUPPLYING BRAIN
Choroid pleux =
Pia + BVs + ependyma
Ependyma is
Neuroglia and thin neuroepeithelial lining of the venricularr system of brain and cetnral canal of spinal cord
Pia forms
Filum ternilane
Denticulat ligamne connecting pia and arahcnoid s suspedning spinal cord to vertebral canal
Cerebello ,dullary cisterna called cisterna,,,,,,,
lies,…..cerebellum and behind .,…….
Contiunous with ,,,,,,,,, around spinal cord receving CSF from,,,,,,,,,via three froamina?
Cisterna Magna
Below cerebellum behind Medulla
Subarachanoid space
4th ventrilce
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3foramina :-
Median formaina of magendi
2 latreal foramina of Lucka
Cisterna Ambiens cotains ?
Great cereberal vein
Above cerebellum below splenium of coripus callosum
Basilar artery in which cisterna ?
Cisterna Pontis
Circle of Willis in whic cisterna ?
Interpeduncular cisterna
Cisterna of lateral fossa contains?
Middle cerebral artery
CSF is Clear clorless odorless fluid secretd by,,,,,,, of diffferent ventricles circulaitng in subarahcnoid space and within venticles the total volume =…to….?
Chorioid pleux
130-150ml
Function of CSF?
CMR
1-Water jacket around brain cuhsinoing againgst trauma
2-Maintaining the volume of fluid inside skull constant if there is increase in blood voulume there is decrease in CSF
For keeping the pressure
3-Removal of Neuronal metabolits
Formation of CSF by?
1-Choroid Pleux 90% from lateral ventricle
2- around cerebral vessels andd from epndyma cells lining the ventrilcs
Choroid = vascular pia inavaingated in wall of lateral ventrilce so lined by epndyma !
Show circulaion of CSF
From lateral ventricle then throrugh Foramne of Monro to Third ventricle Then
to 4th ventrilce via cerebral aqudect of sylivus then to
Subarachnoid space via:
Foramen of Magendi
2 lateral foramens of LUCHKA
to cirulate around brain and spinal cord
Absorption Of Csf done by ?
Arahcnoid villi and granulations into the the dural venous sinuses espically superior sagittal siuns
Hydrocephlaus is due to
increased CSF in skull due to increased Formation oR decreased absorption
or block of CSF circulation SO compress the brain
Lateral Ventrilce
Largest ventricle
cavitis of hmispheres ( telecencephalon)
connected with 3rd ventricle via foramen of monro
it is c shaped formed of?
Body
anterior HORN to frtontal LOBE and posterior to occipital horns
Inferior horn to temporal
Body of lateral ventricle begins from the ,,,,,,,, till the ,,,,,end of thalamus becoming continuous with the posterior and inferior HORNS
Interventricular foramen
POSTERIOR
Boundaries of Lateral ventricle :
Tirangular in shapee
The roof formed of ?
the floor from medial to lateral by?
1- body of
2- groove containing ?>
3-,,,,covered by,,,,,,,,
4-body of …..
Roof = undersurface of CC
Floor=
Body of caudate nucleus
Striaterminalis + thalamostirate veins
Thalmus covered by chorioid pleux
Fronix
the medial wall septum pellicudm
connecting roof of cc with floor formed of Fronix
Anterior horn of lateral ventricle
roof is ?
floor is ?
medial wall is ?
extends forward into frontal lobe
Roof is Corpus callosum
Floor is Rostrum and Caduate head
Medial wall is septum pellicidum + Column of Froinx
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anterior horn contiuous posteriorly with the body of ventricle at interventricular foramne
Posterior horn of lateral ventricle extedns posteriorly into the occipital lobe
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Boundaries?
Roof and lateral wall?
medial wall ?
Roof and lateral wall by the Tapetum and lateral to is
Otic Raidation + Ingerior Longitudinal Bundle
TOE
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Medial wall is ?
Bulb of posterior horn by fibers of forecpes major
Calarc Avis forming calacrine sulcus
Inferior horn Extends antrieorly into tempral lobe
Having a roof and floor
The roof is formed laterally by…..and medially by…….?
The floor is Made from lateal to medail by?
CHAF
Tail of caudate + Stria terminalis
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1-Collateral eminience
2-Hippocampus
3-Alveus
4-Fimbria to the posteriro colmn of fronix
A slit like gap in the medial wall of the body and inferior horn through which Choroid pleux proejects into the ventricle
Choroid fissure
Tela chroidae
A two layred fold of …..mater
that lies above the roof of …..ventricle carring blood vessels to the ….and….ventricles
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Arteries: =……..from…….+………from……….
veins ?
Pia
3rd
3rd and lateral
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anterior choridal form internal carotid
Posterior choriodal form ? Posterior cerebral artery
veins pleux ? Internal cerebral vein ? + Choridal vein
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Tela chorida = …+….
while
Chorid pleux = ……+>….+>…..
Tela = Pia + BVs
Choriod pleux = Pia + BVs + Epedyma
الحمدلله رب العالمين
