the nervous system

Question 1

which 2 parts make up the CNS?

Answer 1

the brain and the spinal cord

Question 2

what makes up the PNS?

Answer 2

autonomic nervous system and somatic nervous system

Question 3

what 2 parts make up the ANS?

Answer 3

parasympathetic nervous system and sympathetic nervous system

Question 4

what is the role of the brain?

Answer 4

centre of everything, more developed in humans than any other animals. Covered by the cerebral cortex which is 3mm thick. control of behaviour and psychological processes and the regulation of physiological processes in the body to maintain life

Question 5

describe the spinal cord and what is it responsible for?

Answer 5

a long extension of the brain. A long bundle of nerve fibres which send messages to and from the brain and connect nerves to the PNS. Responsible for reflex actions

Question 6

what is the parasympathetic nervous system responsible for?

Answer 6

rest and digest: kicks in to bring the body back to normal after the stressor has passed

Question 7

what is the sympathetic nervous system responsible for?

Answer 7

fight or flight: activates when a stressor is detected

Question 8

what is the somatic nervous system responsible for?

Answer 8

responsible for conscious muscle movement

Question 9

what is the autonomic nervous system responsible for?

Answer 9

takes care of the body’s vital functions such as breathing and heart rate. Divided into 2, the parasympathetic and sympathetic nervous system

Question 10

what is the role of the peripheral nervous system?

Answer 10

transmits messages to and receives messages from the CNS via millions of neurones

Question 11

Give one difference between the autonomic nervous system and the somatic nervous system

Answer 11

ANS is involuntary, SNS is under conscious control