Welcome to the Quiz!

This quiz contains 18 questions from a mix of 1 subtopics.

Illustration showing a nerve cell with synapses.

What passes along nerve cells?

Light pulses

Electrical impulses

Heat

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1

Illustration showing the gap between two neurones with a question mark.

What is the gap between two neurones called?

Synapse

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What is released across a synapse?

Blood

Chemicals 

Electricity

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Which of these is part of the central nervous system (CNS)?

(Select all that apply)

Brain

Liver

Spinal cord

Skin

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2

What is the role of a receptor?

To transfer a signal from the CNS to an effector

To detect a stimulus

To transfer a signal from a receptor to the CNS

To transfer a signal from a sensory neurone to a motor neurone

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What is the role of a sensory neurone?

To transfer a signal from a sensory neurone to a motor neurone

To detect a stimulus

To transfer a signal from the CNS to an effector

To transfer a signal from a receptor to the CNS

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What is the role of a motor neurone?

To transfer a signal from the CNS to an effector

To transfer a signal from a sensory neurone to a motor neurone

To transfer a signal from a receptor to the CNS

To detect a stimulus

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What is the role of a relay neurone?

To detect a stimulus

To transfer a signal from a sensory neurone to a motor neurone

To transfer a signal from a receptor to the CNS

To transfer a signal from the CNS to an effector

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What is a reflex?

A voluntary response to a stimulus

An automatic response to a stimulus

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The pathway of a reflex arc


automatic / response / sensory neurone / stimulus / motor neurone / reflex


âž” receptor âž” âž” relay neurone âž” âž” effector âž”

stimulus
sensory neurone
motor neurone
response

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4

What are the two main types of effectors? 

Sense organs 

Glands

Brain

Muscles

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2

Reflexes are:

Slow

Fast

[0/1]

Conscious

Automatic

[0/1]

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2

Which of the following are reflexes?

(Select all that apply)

Blinking when you get dust in your eye

Sneezing 

Picking up a pen

Sitting down

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Why are reflexes important? 

They protect us from harm

They are controlled by hormones 

They last a long time

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Diagram showing part of a reflex arc with a focus on the indicated structure.

The diagram above shows part of a reflex arc. Which structure is being indicated?

Sensory neurone

Motor neurone

Effector

Relay neurone 

Receptor 

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Diagram showing part of a reflex arc with an indicated structure.

The diagram above shows the part of a reflex arc. Which structure is being indicated?

Motor neurone

Receptor 

Relay neurone 

Effector

Sensory neurone

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Diagram showing the part of a reflex arc with an indicated structure.

The diagram above shows the part of a reflex arc. Which structure is being indicated?

Relay neurone 

Effector

Receptor 

Motor neurone

Sensory neurone

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1

Diagram showing part of a reflex arc with a question mark indicating a specific structure.

The diagram above shows the part of a reflex arc. Which structure is being indicated?

Receptor 

Motor neurone

Sensory neurone

Relay neurone 

Effector

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1