PHYSIOLOGY
GENERAL PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is NOT true of a reflex arc?
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It is automatic/involuntary
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It requires processing by the brain for a reaction to occur
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It gives humans a selective advantage when reacting quickly to dangerous situations
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An example is the knee-jerk reflex
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Explanation:
Detailed explanation-1: -The correct option is A True. Reflex action: Reflex action is an immediate and involuntary action taken against a certain stimulus. It is under the control of the spinal cord and is not controlled by the brain.
Detailed explanation-2: -Thus, reflex arc transmits the information from receptor to effector via the spinal cord. The brain is not the part of the reflex arc.
Detailed explanation-3: -So, the correct option is ‘Plexus’.
Detailed explanation-4: -Final Answer: The true statements are that the sudden action in response to something in the environment is called reflex action and the path through which signals are transmitted from a receptor to a muscle or a gland is called the reflex arc.
There is 1 question to complete.