The Nervous System

Question 1

What is a synapse?

Answer 1

A synapse is a small gap between nerve cells.

Question 2

Which type of neurone transmits a signal from a sense organ to the spinal cord and brain?

Answer 2

Sensory

Question 3

Which type of neurone transmits a signal from the central nervous system to an effector such as a muscle?

Answer 3

A motor neurone transmits a signal from the central nervous system to an effector such as a muscle.

Question 4

How is a reflex action different from a normal response by the nervous system to a stimulus?

Answer 4

It doesn’t need to involve the brain

Question 5

Which of these is not a reflex response?

Answer 5

Picking up a book is not a reflex response.

Question 6

What is the name of the long part of the nerve cell that carries the signal?

Answer 6

Axon

Question 7

The ability of the eye to control the amount of light entering it is:

Answer 7

The ability of the eye to control the amount of light entering it is a reflex action.