Cranial cavity: meninges and blood supply Flashcards
What are the layers of the dura mater?
Periosteal layer (attached to bone
Meningeal layer (contact with arachnoid mater)
Describe the structure of the venous sinuses
Formed when the layers of the dura mater separate to create a cavity.
Sinuses also invaded by projections of the arachnoid called granulations which reabsorb CSF into the venous system
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Falx Cerebri
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Falx cerebelli
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Tentorium Cerebelli
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Diaphragm sellae
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Posterior meningeal artery
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Middle meningeal artery
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Anterior meningeal arteries
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Anterior communicating artery and anterior cerebral artery
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Basilar artery
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Cerebral arterial circle
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Left and right internal carotid arteries
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Ophthalmic and middle cerebral arteries
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Posterior communicating and cerebral arteries
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Right and left common carotid arteries
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Right and left subclavian arteries
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Right and left vertebral arteries
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Confluence of sinuses
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Great cerebral vein
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Inferior sagittal sinus
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right transverse sinus
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sigmoid sinus
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straight sinus
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superior petrosal sinus
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superior sagittal sinus
