NERVOUS SYSTEM SPECIAL SENSE
SPINALCORD
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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action potentials
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reflexes
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sensory reception
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effector control
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Detailed explanation-1: -A reflex is an involuntary and nearly instantaneous movement in response to a stimulus. The reflex is an automatic response to a stimulus that does not receive or need conscious thought as it occurs through a reflex arc. Reflex arcs act on an impulse before that impulse reaches the brain.
Detailed explanation-2: -It is called a reflex action. Thus, Reflex action is an automatic, spontaneous and mechanical response to a stimulus controlled by spinal cord without the involvement of brain.
Detailed explanation-3: -Reflex is defined as an involuntary motor response, secretory or vascular, elicited shortly after a stimulus, which may be conscious or not. The response to the stimulus is unalterable, it cannot be changed or adapted according to needs or circumstances.