exam 4 Flashcards
1
Q
neural signaling and regulation
A
- monitors changes inside and outside the body
- integrates information
- effects response
2
Q
Central Nervous System
A
Brain
Spinal cord
3
Q
Peripheral Nervous System
A
Spinal Nerves (31 pairs) Cranial Nerves (12 pairs)
4
Q
Sensory Division
A
(afferent)
-carries action potentials TO the CNS
5
Q
Motor Division
A
(efferent)
–carries action potentials FROM the CNS
6
Q
somatic motor
A
supplies skeletal muscle with nerves
7
Q
autonomic motor
A
(visceral) supplies nerves to: -smooth muscle -cardiac muscle glands
8
Q
sympathetic
A
(increase)
- physical activity
- fight or flight response
9
Q
parasympathetic
A
(decrease)
-digestive, vegetative activities
10
Q
neuroglia
A
support cells
11
Q
neurons
A
nerve cells
12
Q
neuroglia in CNS
A
-support, insulate, and protect neurons
13
Q
astrocytes
A
- barrier between capillaries and neurons
- protects neurons from harmful substances
14
Q
microglia
A
phagocytes
-dispose of debris and foreign
15
Q
ependymal cells
A
- lines cavities of the brain, spinal cord/central canal
- make cerebrospinal fluid (CSF)
