In reflex action the hand moves away first and full pain is felt later. What is the best reason?
Answer and explanation
Correct answer: The spinal cord produces the quick response and the brain later gives the conscious feeling of pain
The governing concept is the reflex arc. A harmful stimulus is detected by receptors, and the sensory impulse reaches the spinal cord, which rapidly sends a motor command to the muscles before conscious interpretation is completed. A later impulse reaches the brain, producing the full awareness of pain. Therefore option A is correct. The other options deny the brain, receptors or muscle contraction, all of which are involved in normal response.
Frequently asked questions
What is the correct answer to this question?
The spinal cord produces the quick response and the brain later gives the conscious feeling of pain
Why is this the correct answer?
The governing concept is the reflex arc. A harmful stimulus is detected by receptors, and the sensory impulse reaches the spinal cord, which rapidly sends a motor command to the muscles before conscious interpretation is completed. A later impulse reaches the brain, producing the full awareness of pain. Therefore option A is correct. The other options deny the brain, receptors or muscle contraction, all of which are involved in normal response.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Reflex action.
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