The nervous system

Question 1

Two components of the CNS

Answer 1

Spinal chord

Brain

Question 2

Four main areas of the brain

Answer 2

Cerebrum
Cerebellum
Diencephalon
Brain Stem

Question 3

Function of the cerebrum

Answer 3

• Largest part

- Divided into: frontal lobe (speech), occipital lobe (visual)

Question 4

Function of the cerebellum

Answer 4

• Controls motor and balance skills

- Abnormalities can result in problems such as epilepsy

Question 5

Function of the diencephalon

Answer 5

Divided into Thalamus (relay station for impulses)
and hypothalamus (regulates temp, hunger)

Question 6

Function of the brain stem

Answer 6

• Regulates automatic functions: breathing, heart beat

Question 7

The peripheral nervous system’s two parts:

Answer 7

Somatic and Autonomic

Question 8

Function of somatic

Answer 8

Made up of twelve pairs of cranial nerves and 31 pairs of spinal nerves.
These nerves have sensory and motor neurons

Question 9

Function of autonomic

Answer 9

Regulates involuntary actions

Question 10

Autonomic two parts

Answer 10

Sympathetic and parasympathetic

Question 11

Function of the sympathetic

Answer 11

Fight or flight. Neurons travel from the SNS to organs and glands. SNS causes the body to release stored energy.

Question 12

Effects on the SNS: Sympathetic

Answer 12

• Increased pupil size
• Increased heart rate
• Increased breathing rate
• Bronchi dilate
• Glycogen converted to glucose

Question 13

Function of the parasympathetic

Answer 13

Relaxes an individual after emergency. Rest and Digest