CH 2 - nervous system functioning

Question 1

what is the nervous system?

Answer 1

The nervous system includes the brain, spinal cord, and a complex network of nerves. This system sends messages back and forth between the brain and the body. The brain is what controls all the body’s functions.

Question 2

What 2 divisions separate the nervous system?

Answer 2

Central Nervous system (CNS)

Peripheral Nervous system (PNS)

Question 3

What 2 divisions separate the peripheral nervous system?

Answer 3

Autonomic NS
- communicates with internal organs and glands

Somatic NS
- communicates with sense organs and voluntary muscles

Question 4

What 3 divisions separate the Autonomic nervous system?

Answer 4

Enteric NS
- digestion

Sympathetic
- arousing / preparing the body for action

Parasympathetic
- calming (the body down after action)

Question 5

What 2 divisions separate the Somatic nervous system?

Answer 5

Sensory
- aka afferent
- sensory input

Motor
- aka efferent
- motor input

Question 6

what is a conscious response?

Answer 6

a recations to sensory stimulus that involves awareness. it is:
- voluntary
- controlled
- intentional
- goal directed / purposeful

Question 7

what is an unconscious response?

Answer 7

a reaction that does not involve awareness, it is:
- involuntary
- unintentional
- automatic
- unable to be controlled

Question 8

what is the main role of the central nervous system?

Answer 8

• to perceive information
• to process information
• to coordinate a response to the information