The Human Nervous System (AQA GCSE Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What do receptor cells do?
What do receptor cells do?
Convert a stimulus into an impulse
Where do sensory neurons carry electrical impulses to?
Where do sensory neurons carry electrical impulses to?
The central nervous system (CNS)
What do motor neurones send electrical impulses to?
What do motor neurones send electrical impulses to?
Effectors
What are two types of effectors?
What are two types of effectors?
Muscles and glands
What are reflexes?
What are reflexes?
Automatic responses before you think
Why are reflexes important?
Why are reflexes important?
They prevent the individual from harm
Where does the impulse NOT pass during a reflex?
Where does the impulse NOT pass during a reflex?
Through conscious areas of the brain
In the CNS during a reflex arc, which neuron does the impulse pass to?
In the CNS during a reflex arc, which neuron does the impulse pass to?
A relay neuron
Which is an example of a reflex arc?
Which is an example of a reflex arc?
Pupils getting smaller in bright light
What are synapses?
What are synapses?
Gaps between two neurons
What happens when an impulse reaches the end of the first neuron at a synapse?
What happens when an impulse reaches the end of the first neuron at a synapse?
A chemical is released into the synapse
What is reaction time?
What is reaction time?
How long it takes to respond to a stimulus