u3 - aos1 dp1

Question 1

main functions of NS

Answer 1

• recieve
• process
• coordinate response

Question 2

central ns

Answer 2

• brain - recieves and processes information from body and coordinates appropriate response
• spinal cord - recieves sensory info from body via PNS and sends it to the brain
  - recieves motor info from the brain and sends it to relevent parts of body via PNS

Question 3

Peripheral NS

Answer 3

neuron outside of CNS
transmits info to and from CNS and muscles
somatic NS and Automatic NS

Question 4

somatic NS

Answer 4

controls intentional/ voluntary movement
connects CNS to skeletal muscles
SAME

Question 5

autonomic NS

Answer 5

controls involuntary actions/ automatic regulation of internal organs
connects CNS to visceral muscles
sympathetic NS
parasympathetic NS

Question 6

sympathetic NS

Answer 6

increase activity of visceral muscles (organs and glands)
automatically arouses body
activates fight or flight
dominates under stress/ high activity
prepares body for action

Question 7

parasympathetic NS

Answer 7

decreases activity of visceral muscles
automatically clams body
returns body to normal rate (homeostasis)
clams body after action