What is the meaning of reflex actions ? Give examples.

Explanation

The meaning of reflex actions : Refer to "Gist of the chapter..
OR
Reflex action is involuntary instant action without the involvement of brain for bringing about important reaction needed for survival.
Examples of reflex action :
(1) Removal or withdrawal of hand or leg when anything sharp or hot touches unknowingly
(2) Coughing, Sneezing, Yawning
(3) Knee jerk response
( 4 ) Movement of diaphragm
(5) Contriction of pupil in bright light
(6) Mouth starts watering when smell or sight of favourite/ delicious food is there.