EMBRYOLOGY
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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spinal cord
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nerves
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brain
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None of the above
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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: -In a reflex action, the brain plays no part. The spinal cord, which reacts without thinking about how to respond to stimuli, is in charge of these automatic actions.
Detailed explanation-3: -Brain is not involved in any reflex action (e.g., knee-jerk relfex) while the muscle spindle, inter neuron and motor neuron are the part of reflex arc.
Detailed explanation-4: -Sweating is not a reflex action. It is primarily a means of temperature regulation. But, salivation on seeing food, hand withdrawal because of the needle and blinking of the eyes due to bright light are all examples of reflex actions.