9.2.1 - The nervous system

Question 1

What makes up the central nervous system?

Answer 1

Brain and spinal cord.

Question 2

What is the peripheral nervous system/

Answer 2

Made up of pairs of nerves which originate from either the brain or the spinal cord.

Question 3

What is an example of a function in the body that is controlled by the autonomic nervous system?

Answer 3

pancreas secereting insulin

Question 4

Is the somatic nervous system voluntary or involuntary?

Answer 4

Voluntary

Question 5

What do sensory neurones do?

Answer 5

Carry impulses from receptors towards the CNS

Question 6

What do motoe neurones do?

Answer 6

Carry impulses away from the CNS to effectors.

Question 7

What does the voluntary nervous system do?

Answer 7

Carries nerve impulses to the muscles and is under voluntary or conscious control.

Question 8

What does the autonomic nervous system do?

Answer 8

Carries impulses to glands, smooth muscle or cardiac muscle.
Involuntary

Question 9

What is the autonomic nervous system divided into?

Answer 9

Sympathetic and parasympathetic

Question 10

Discuss the similarities and differences in the structures of the sympathetic and parasympathetic nervous system?

Answer 10

Similarities - In both, fibres leave the CNS in a ganglion.
Differences - Sympathetic, ganglia are close to the CNS.
Parasympathetic, ganglia are close to the effector organ.