EMBRYOLOGY
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Slow response that you have to think about
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Rapid response to protect body from harm
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Either A or B
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None of the above
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Detailed explanation-1: -Final answer: A reflex arc in man is best described as the movement of stimuli from receptor cells, sensory neurons, relaying neurons, and effector’s muscles.
Detailed explanation-2: -A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This allows for faster reflex actions to occur by activating spinal motor neurons without the delay of routing signals through the brain.
Detailed explanation-3: -It is an immediate action taken without much thinking and it does not have our control. The spinal cord is responsible for the response of the body because the impulse has not reached the brain till then. Therefore, the correct answer is option A.