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.
$(i)$ 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.
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$(iii)$ Motor neurons carry signals from receptors to the spinal cord.
$(iv)$ The path through which signals are transmitted from a receptor to a muscle or a gland is called a reflex arc.
$(i)$ Sudden action in response to something in the environment is called reflex action.
$(ii)$ Sensory neurons carry signals from the spinal cord to muscles.
$(iii)$ Motor neurons carry signals from receptors to the spinal cord.
$(iv)$ The path through which signals are transmitted from a receptor to a muscle or a gland is called a reflex arc.
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