General Flashcards
1
Q
list the 4 divisions of the brain
A
- cerebrum
- diencephalon
- brain stem
- cerebellum
2
Q
describe the CEREBRUM
A
- largest part of brain
- longitudinal fissure
- has 4 lobes
3
Q
what parts compose the DIENCEPHALON
A
thalamus & hypothalamus
4
Q
what parts compose the BRAIN STEM
A
midbrain, pons, & medulla oblongata
5
Q
purpose of CEREBELLUM
A
voluntary muscle & balance
6
Q
define MENINGES
A
protective membranes surrounding brain & spinal cord
7
Q
what are the 3 layers of meninges from outer most to inner
A
- dura mater
- arachnoid mater
- pia mater
8
Q
describe the DURA MATER
A
- tough outer layer for protection
- has dural sinuses
9
Q
define DURAL SINUSES
A
allow drainage of blood from brain tissue toward heart
10
Q
describe the ARACHNOID MATER
A
- middle web-like fibrous layer
- allows space for movement of CSF
11
Q
define PIA MATER
A
innermost layer that has blood vessels
12
Q
define CEREBROSPINAL FLUID
A
clear fluid circulating brain & spinal cord
13
Q
purpose of CSF
A
- supports nervous tissue
- absorbs shock
- carry nutrients & waste
