The Human Nervous System : PNS

Question 1

What is the peripheral nervous system made up of?

Answer 1

All the nerves outside the CNS

Question 2

The PNS sends information to the CNS from:

Answer 2

Outside world

Question 3

The PNS sends information from the CNS to:

Answer 3

Muscles and glands in the body

Question 4

Somatic response responds to?

Answer 4

Information form sensory receptors

Question 5

SNS transmits info…

Answer 5

from: receptor cells in sensory organs
towards: CNS using sensory neurons.

Question 6

SNS Receives info…

Answer 6

from: CNS directing muscles to act using motor neurons.

Question 7

Describe Autonomic Nervous System (ANS)

Answer 7

Automatic + involuntary

Question 8

(ANS) Important in homeostasis as it controls:

Answer 8

Automatic responses + vital functions

Question 9

(ANS) In doing this it governs responses including:

Answer 9

• breathing
• heartbeat
• stress response
• sexual arouse

Question 10

How does the CNS work with the endocrine system?

Answer 10

Fight and flight response

Question 11

What are the divisions of ANS?

Answer 11

Sympathetic

Parasympathetic

Question 12

Define sympathetic

Answer 12

• When the body is involved in a ‘fight or flight’ response to a stressful event.
• The sympathetic nervous system gets the body ready by increasing heart and breathing rates

Question 13

Define parasympathetic

Answer 13

• The normal resting state of the body.
• After a stressful event, the parasympathetic nervous system returns the body to its normal resting state.
• Works in opposition to the sympathetic nervous system and acts as a ‘brake’ to the fight or flight response.