Nervous System

Question 1

What is the name given to the gap between neurones?

Answer 1

Synapse

Question 2

Receptors are cells that detect….

Answer 2

Stimuli

Question 3

In vertebrates the CNS consists of which two parts?

Answer 3

Spinal cord and Brain

Question 4

Effectors are glands or ….?

Answer 4

Muscles

Question 5

The name given to the type of neurone that carries electrical impulses from a sensory neurones to motor neurones?

Answer 5

Relay

Question 6

Nerve impulses are chemical or electrical signals?

Answer 6

Electrical

Question 7

The name given to automatic responses to certain stimuli?

Answer 7

Reflexes

Question 8

What is reaction time?

Answer 8

The time taken to respond to a stimulus

Question 9

Ears are a receptor for what stimulus?

Answer 9

Sound

Question 10

The name of the neurones that carry electrical impulses from the central nervous system to the effectors

Answer 10

Motor neurones

Question 11

The name of the neurones that carry information as electrical impulses from the receptors in the sense organs to the central nervous system?

Answer 11

Sensory neurones

Question 12

How are messages carried across a synapse?

Answer 12

By chemicals

Question 13

Your skin is a receptor for what?

Answer 13

Touch and Heat

Question 14

Why are reflex actions important?

Answer 14

They protect us, keep us safe, reduce the risk of injury

Question 15

How does blinking protect us?

Answer 15

Stops dust / dirt entering the eyes

Question 16

What happens to your pupils in your eye if a bright light is aimed at them?

Answer 16

The pupil gets smaller to reduce the amount of light getting into the eye.

Question 17

What impact does adrenaline have on the body?

Answer 17

It makes the body ready for action.

Question 18

Sneezing is a reflex action. How do we know this?

Answer 18

We do not have to think about it, it happens automatically.