Nervous System

Question 1

list nervous system divisions

Answer 1

central nervous system: brain, spinal cord
peripheral nervous system: somatic NS, Autonomic NS
Autonomic nervous system: sympathetic NS, parasympathetic NS

Question 2

brain

Answer 2

area of CNS that receives and interprets information and coordinates responses in response to the stimuli

Question 3

spinal cord

Answer 3

collection of nerve tissue that connects the PNS to the brain

Question 4

function of nervous system

Answer 4

to receive, process, and respond to sensory information

Question 5

interneuron

Answer 5

in the spinal cord. intercepts

Question 6

spinal reflex + example

Answer 6

an automatic unconscious response (generated in the spinal cord) to a harmful stimulus to reduce the damage done to the body.
- picking up a hot pan the spinal cord will register its harmful and coordinate a response such as dropping it to reduce harm to the body.

Question 7

afferent neurons

Answer 7

sensory neurons, travel on afferent pathways

Question 8

efferent neurons

Answer 8

motor neurons, travel on efferent neural pathways

Question 9

somatic NS

Answer 9

connects sensory receptors, skeletal muscles, to CNS. afferent/efferent

Question 10

autonomic NS

Answer 10

connects CNS to organs, glands, and visceral (involuntary) muscles

Question 11

sympathetic NS

Answer 11

increasing autonomic arousal. fight, flight, freeze. body prepares for s stressful or dangerous situation

Question 12

parasympathetic NS

Answer 12

decreasing autonomic arousal. homeostasis