Reflex Action (Leaving Cert 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 action?
What is a reflex action?
An automatic response to a stimulus
Which of these is an example of a reflex action?
Which of these is an example of a reflex action?
Sneezing
How many types of neurons make up most reflex arcs?
How many types of neurons make up most reflex arcs?
Three
What is the main purpose of reflex arcs?
What is the main purpose of reflex arcs?
To protect the body from damage
What detects the hot object in the reflex example?
What detects the hot object in the reflex example?
Receptors in the fingers
Which neuron carries the impulse to the spinal cord?
Which neuron carries the impulse to the spinal cord?
Sensory neuron
Where does the sensory neuron carry the impulse to?
Where does the sensory neuron carry the impulse to?
The spinal cord
What does the interneuron do in the reflex arc?
What does the interneuron do in the reflex arc?
Carries impulse across spinal cord
Which neuron carries the impulse to the effector?
Which neuron carries the impulse to the effector?
Motor neuron
What does the effector do in response to the impulse?
What does the effector do in response to the impulse?
Pulls the hand back
When does the person become aware of the reflex action?
When does the person become aware of the reflex action?
As the hand withdraws
What characteristic makes reflex arcs protective?
What characteristic makes reflex arcs protective?
They are fast responses