nervous system divisions Flashcards
1
Q
central nervous system
A
- brain and spinal cord
- control center
2
Q
peripheral nervous system
A
- cranial and spinal nerves
- communicates between body and CNS
3
Q
peripheral units
A
somatic and autonomic
4
Q
somatic nervous system
A
- controls voluntary movement
- controls reflexes
5
Q
somatic units
A
sensory and motor
6
Q
sensory (afferent) division
A
- sensory neurons
- sends signals from receptors to CNS
7
Q
motor (efferent) division
A
- motor neurons
- sends signals from CNS to effectors
8
Q
autonomic nervous system
A
- controls involuntary responses
9
Q
autonomic units
A
sympathetic and parasympathetic divisions
10
Q
sympathetic division
A
- responds to stress
- fight or flight response
11
Q
parasympathetic division
A
- conserves energy
- restores body after stress
- rest and digest response
