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15 Cards in this Set

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how many layers to the meninges

3:


dura mater


arachnoid membrane


pia mater

does the dura mater have any neurons or do any cognition/processing

no and no

what is dura mater

dense outermost layer covering brain and


spinal cord


(two layers)

dura mater attached to

inside of skull

dura mater has what two spaces

epidural


subdural

dura mater sits on top of

arachnoid membrane

what is the arachnoid membrane

Thin, delicate, nonvascular membrane lying under the dura that surrounds the brain loosely


what two spaces does the arachnoid membrane have

Subdural


subarachnoid


what is the pia mater

Thin transparent innermost membrane, closely attached to surface of the brain.


spinal dura mater is

outermost single layer

spinal dura mater has what two spaces

(1) extradural space


(2) epidural space


Spinal Arachnoid Begins at




and extends to


foramen magnum (opening in the skull)




cauda equina (near base of spinal column)

Subarachnoid space around the spinal cord is filled with

CSF

Spinal Pia mater is the


Innermost protective layer which Surrounds and tightly adheres to spinal column



what pierces the spinal pia mater

Fibers of the dorsal and ventral spinal roots pierce the pia membrane