(7) THE NERVOUS SYSTEM

Question 1

What is a neuron

Answer 1

Cells that conduct electrical impulses to and from the brain

Question 2

Diagram nervous system:)

Answer 2

[add photo]

Question 3

What is the central nervous system made up of

Answer 3

Brain and spinal chord

Question 4

What do both parts of the central nervous system do?

Answer 4

○ Brain
§ Function:
□ Centre of awareness
○ Spinal cord
§ What is it?
□ An extension of the brain
§ What does it do?
□ Transfer messages to and from the PNS and the brain
□ Responsible for reflexes

Question 5

What 4 parts can the brain be split into and what are their functions?

Answer 5

○ Cerebrum
§ Split into 4 lobes
§ Function:
□ Personality, speech, visual, motor ability
○ Cerebellum
§ Function:
□ Controls posture and balance
○ Diencephalon
§ Split up into 2 parts:
□ Thalamus
□ Hypothalamus
§ Function:
□ Thalamus - relay station for incoming nerve impulses
□ Hypothalamus - controls temp + allows hormone release from pituitary gland
○ Brain stem
§ Function:
□ Regulates automatic functions necessary for life (heart rate & breathing