nervous system Flashcards
1
Q
what is the nervous system
A
- carries messages from the body to the brain and the brain to the body
2
Q
central nervous system (CNS)
A
- brain & spinal cord
3
Q
peripheral nervous system (PNS)
A
- any nerve outside the brain & spinal cord
4
Q
PNS functions
A
- communicate info from bodys organs, muscles & glands to the brain and to communicate info from brain to bodys organs, muscles & glands
5
Q
somatic nervous system
A
- responsible for carrying messages from the brain to the skeletal muscles & carrying messages from the senses to the brain to be processed
6
Q
motor neurons
A
- communicate messages from CNS to the particular muscles that an organism needs to move
7
Q
sensory neurons
A
- carry out messages from the senses to the CNS so our brain can interact with the environment
8
Q
autonomic nervous system
A
- controls bodies non-skeletal muscles, these organs carry out the basic bodily functions necessary for survival (heart beat, digestion)
9
Q
sympathetic nervous system
A
- fight or flight response
- prepares us for action
10
Q
parasympathetic nervous system
A
- rest and digest
- calms our body down and returns us to normal
