The Reflex Arc (AQA GCSE Biology): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is a reflex arc?
What is a reflex arc?
The pathway of nerve impulses in reflexes
Which two characteristics describe reflex actions?
Which two characteristics describe reflex actions?
Automatic and rapid
What detects the stimulus in a reflex arc?
What detects the stimulus in a reflex arc?
Receptors
Where does the sensory neuron carry the impulse to?
Where does the sensory neuron carry the impulse to?
To the spinal cord
What is another name for a relay neuron?
What is another name for a relay neuron?
Interneuron
What are effectors in a reflex arc?
What are effectors in a reflex arc?
Muscles or glands
Which neuron receives the impulse from the relay neuron?
Which neuron receives the impulse from the relay neuron?
Motor neuron
Why do reflex responses happen faster than conscious responses?
Why do reflex responses happen faster than conscious responses?
They bypass the conscious brain
What is the main purpose of reflex arcs?
What is the main purpose of reflex arcs?
To enable quick protection from harm
Which is an example of a reflex action?
Which is an example of a reflex action?
Withdrawing hand from heat
In which order do impulses travel in a reflex arc?
In which order do impulses travel in a reflex arc?
Sensory→relay→motor
Which part of the nervous system contains the relay neuron?
Which part of the nervous system contains the relay neuron?
The spinal cord