L1 - Nervous System

Question 1

Describe the CNS

Answer 1

Brain and spinal cord

Controls behaviour and regulates physiological processes

Question 2

How is the brain divided

Answer 2

Cerebrum
Cerebellum
Diencephalon
Brain stem

Question 3

Describe cerebrum

Answer 3

4 lobes, 2 hemispheres, largest part

Question 4

Describe cerebellum

Answer 4

Controls motor skills, balance, coordinating muscles

Question 5

Describe diencephalon

Answer 5

Contains thalamus (sleep, alertness) and hypothalamus (homeostasis, stress response, osmoregulation)

Question 6

Describe brain stem

Answer 6

Regulates heart and breathing rate

Question 7

Function of spinal cord

Answer 7

Relays info between brain and rest of body by connecting specific muscles and glands by pairs of spinal nerves

Question 8

Describe peripheral nervous system

Answer 8

Transmits APs to and from CNS using sensory and motor neurons
2 divisions

Question 9

Describe SNS

Answer 9

Voluntary motor movements
Under conscious control 
Sensory and motor neurons 
Connected to skeletal muscle
ACh

Question 10

Describe ANS

Answer 10

Only motor neurons
Involuntary
Subconscious control

Question 11

SNS and ANS controlled by what

Answer 11

Motor cortex

Brain stem

Question 12

Sympathetic NS is activated when

Answer 12

Under stress/threat
F/F response
Noradrenaline/adrenaline

Question 13

PNS occurs when

Answer 13

Relaxing and conserving energy

ACh