Question

define reflex arc? & define reflex action

Answer 1

◆Reflex arc: The arc which form during reflex action is known as reflex arc.
◆Reflex action: The simplest form of response
in nervous system is called Reflex action.

A reflex action is one which we perform automatically.

Answer 2

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Reflex Arc :

• It is the nerve path involved in a reflex action for quick responses.

• A message fro the receptor is relayed by sensory nerves to spinal cord , which sends information for response in a motor nerve to the effector.

• EXAMPLES : Hand touching a hot object...

Reflex Action :

• It is an unconscious , involuntary and automatic response to the stimuli.

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