Q. 114.9( 9 Votes )

Define reflex arc

Answer :

The pathway of the reflex action is called Reflex arc. Reflex action is any spontaneous, involuntary and automatic response to a stimulus to protect us from harmful situations. For e.g. when a person touches a hot plate a sudden action leading to withdrawal of hand occurs in a certain manner, this path of manner determines the reflex arc.

Explanation: It means that reflex action is the response which is completed by a pathway called reflex arc. For example: knee jerk etc.

These 3 steps occur to generate a response with a stimulus in a reflex arc

(i) Receive the information from environment

(ii)Receive the information from various body parts.

(Stimuli Response)

(iii) To act accordingly through muscles and glands and generate response.

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