Question

Write a note on reflex action.

Answer 1

Hi ..


here is your answer. .



Reflex action; :-- Reflex action is defined as a quick , autonomic involuntary and often unconscious action brought about when the receptor are stimulated by external or internal stimuli.



Reflex arc:-- Reflex actions are controlled by CNS .Reflex arc is the structural or functional unit of reflex Action.




Receptor organ

Sensory neuron


Association adjuster or intermediate neuron


Motor neuron.


Effector organ.



This all are the components of reflex actions.




hope it helps you. ☺

Answer 2

Hey there !

Reflex action is a sudden, unconscious and involuntary response of the effectors to a stimulus.
For example:

We suddenly withdraw our hand if we suddenly touch a hot object.

In this reflex action, the news in the skin (receptor) defects the heat and passes the message through the sensory nerves to the spinal cord. Then the information passes through the motor nerves to the muscles ( effector ) of the hand and we withdraw our hand.

Hope it helps you !

HAPPY INDEPENDENCE DAY......!!