in reflex arc, is the message sent to the brain or the spinal cord gives the instructions?

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Solution

In reflex action brain has no role to play. Spinal cord controls reflex action. Though the signals are sent to the brain by the nerves, but that is only to analyze them. Reflex actions take place without interference of brain.

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Similar questions

Reflex arc is the pathway of impulses to and from the spinal cord.

Which of the following statements are true?
(i) Sudden reaction in response to the stimulus is called reflex action.
(ii) Sensory neurons carry signals from the spinal cord to muscles.
(iii) Motor neurons carry signals from receptors to spinal cord.
(iv) The path through which signals are transmitted from a receptor to a muscle or a gland is called reflex arc.

Q. One of the following gives the correct sequence of the components in a reflex arc. This is :
(a) Receptors → Muscle → Sensory neuron → Motor neuron → Spinal cord
(b) Receptors → Motor neuron → Spinal cord → Sensory neuron → Muscle
(c) Receptors → Spinal cord → Sensory neuron → Motor neuron → Muscle
(d) Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle

What is meant by reflex action? Does only spinal cord act during this situation or brain helps too?

Q. Correct the statement or mention if it is true-
Nerve impulses takes messages from brain via spinal cord to sense organs and vice versa.

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