central nervous system Flashcards
meninges: recall the layers of the meninges and explain their function
1
Q
how many membranes do the brain and spinal cord have
A
3
2
Q
what is the purpose of the membranes
A
for protection
3
Q
what are the three membranes
A
Dura mater, Arachnoid membrane, Pia mater
4
Q
Dura mater
A
tough membrane attached to bone or forming partitions (dural folds) with venous sinuses in their margins
5
Q
Arachnoid membrane
A
thin membrane attached to the underside of the dura
6
Q
Pia mater
A
delicate membrane closely adherent to surface of brain and spinal cord
7
Q
what flows in the subarachnoid space
A
cerebrospinal fluid (CSF)
8
Q
what may obstruction of meninges (e.g. meningitis) cause
A
hydrocephalus
9
Q
what might bleeding between layers cause
A
types of stroke
