Mention any four reflex actions of the body.

(N/A) Reflex actions are rapid,involuntary responses to stimuli. Four examples of reflex actions are:
$(i)$ Sneezing: $A$ sudden,involuntary expulsion of air from the nose and mouth.
$(ii)$ Coughing: $A$ rapid expulsion of air from the lungs to clear the airways.
$(iii)$ Knee-jerk reflex: $A$ sudden involuntary kicking movement of the lower leg in response to a sharp tap on the patellar tendon.
$(iv)$ Blinking of eyes: $A$ rapid closing and opening of the eyelids to protect the eyes from foreign objects or bright light.