Nervous System -- Meninges and CSF
About this set
Created by:
csaluki762 on March 22, 2010
Subjects:
Classes:
Log in to favorite or report as inappropriate.
Order by
13 terms
Terms | Definitions |
|---|---|
 dura mater | outermost meninx covering the brain; composed of tough fibrous connective tissue; outer layer forms periosteum of skull |
| pia mater | innermost meninx covering of the brain; delicate and highly vascular |
| arachnoid villi | structures instrumental in returning cerebrospinal fluid to venous blood in dural sinuses |
| arachnoid mater | middle meninx; cobweb-like in structure; secures arachnoid to pia mater |
| falx cerebri | dual fold that attaches the cerebrum to crista galli of skull; in longitudinal fissure |
| tentorium cerebelli | dural fold separating cerebrum from cerebellum; over cerebellum and in trasverse fissure |
| periosteal layer | superficial layer of dura mater attached to inner surface of skull |
| meningeal layer | deeper layer of dura mater forms true external covering of brain |
| falx cerebelli | dural fold along vermis of cerebellum |
| subarachnoid space | between arachnoid mater and pia mater; contains CSF and blood vessels |
| cerebrospinal fluid | found in and around brain and spinal cord; reduces brain weight by 97%; prevents brain from crushing under its own weight |
| choroid plexuses | produces CSF at constant rate; clusters of capillaries enclosed by pia mater and a layer of ependumal cells |
| blood-brain barrier | maintains stable environment for brain; separates neurons from some bloodborne substances |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.