Anatomy and Cell Biology 3319 Lecture Notes - Lecture 13: Dura Mater, Arachnoid Granulation, Pia Mater
2 Aug 2019
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Brain is protected from injury by 4 structures. Meninges cover enclose t protect cns t protect vessels that supply cns. Contain csf (cid:8869) located b/w pi at arachnoid maters ; subarachnoid space. 2 layers : peri osteal layer attaches layer deep to peri osteal to meningeal. , except to enclose blood - filled dural (cid:8869) layers fused internal surface of skull bones. , forms true external covering of brain sinuses. Dural sinuses superior sagittal inferior sagittal sinus sinus arachnoid granulation s relieves drains into straight sinus. Vertical sheet cranial cavity t limits movement of brain within cranium. Continues inferiorly from posterior part of fat x cerebri runs along vermis of cerebellum. Delicate connective tissue w many blood vessels ( richly vaswani gedl. Clings tightly to brain surface (cid:8869) follows all convolutions of cortex t dips in sulci cling wrap. Lumbar puncture: needle injected b/w spines of.
