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Endocranial Cavity (Questions (Meningeal Layer adhered to the inner…
Endocranial Cavity
Questions
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Artery in the Circle of Willis that connects anterior & posterior blood supply- Posterior Communicating Artery
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Meninges & Spaces
Dura Mater
Outermost layer tightly adheres to endosteum (periosteum inside the endocranial cavity) Between these layers is a epidural space
Arachnoid Mater
Between the dura & Arachnoid. Potential subdural space. Between the arachnoid mater is the substantial subararachnoid space, which contains CSF
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ICA
Temporal Lobes, Frontal Lobes, & Parietal Lobes along the midline
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Splits into Middle Cerebral & Anterior Cerebral Arteries which are connected by the Anterior Communicating Artery
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CSF Flow
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Flows into the venous circulation via arachnoid granulations. One way valves that do not let blood enter CSF. Excess CSF taken up by lymphatics
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Cavernous Sinus
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CN 3, CN4, V1, CN 6, ICA & Plexus
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