Unit 3.1 - divisions of the nervous system and parts of the brain

Question 1

Name the 2 divisions of the nervous system.

Answer 1

• CNS (central nervous system)

- PNS (peripheral nervous system)

Question 2

Name the divisions of the CNS.

Answer 2

• Brain

- Spinal Cord

Question 3

Name the divisions of the PNS.

Answer 3

• ANS (autonomic nervous system)

- SNS (somatic nervous system)

Question 4

State the function of the Brain and Spinal Cord.

Answer 4

Brain: responsible for processing information

Spinal Cord: links brain to PNS

Question 5

State the two divisions of the ANS.

Answer 5

• sympathetic

- parasympathetic

Question 6

Name the 5 different parts of the brain.

Answer 6

• cerebral cortex
• medulla
• cerebellum
• hypothalamus
• limbic system

Question 7

What is the function of the medulla?

Answer 7

Regulates heart rate, breathing rate, sleep and arousal.

Question 8

What is the function of the cerebellum?

Answer 8

Controls balance, posture, co-ordination, movement.

Question 9

What is the function of the hypothalamus?

Answer 9

• regulates body temperature and water concentration.

- inhibits/stimulates hormone secretions from the pituitary gland.

Question 10

What is the function of the Limbic System?

Answer 10

• processes information for memories

- influences emotional and motivational states

Question 11

What connects the two cerebral hemispheres?

Answer 11

Corpus Callosum

Question 12

What is the Corpus Callosum and what is it’s function?

Answer 12

A bridge of nerve fibres that connect the two cerebral hemispheres

Transfers information/impulses between the two hemispheres