Question

Define reflex actions give 3 examples of reflex actions

Answer 1

 Reflex action is defined as an unconscious and involuntary response of effectors to a stimulus. Ex: pumping of heart,sneezing,when we touch a object we suddenly remove our hand.

Answer 2

Answer :-

Reflex Action :-

• Reflex action is an immediate involuntary response to a stimulus without the intervention of brain.

• The occurrence of reflex actions is controlled by the spinal cord of the central nervous system.

• Reflex action is an automatic motor response to a sensory stimulus which does not include the immediate involvement of the brain.

• Reflex action is an essential display exhibited by the motor nerves.

• Reflex actions are comparatively more rapid than normal actions.

• Reflex actions are completed through specific paths known as "Reflex arcs".

• Reflex arcs are defined as the arrangements of neurons in the form of pathways that pass through the central nervous system.

■ Examples of reflex action are :-

• Pulling away of hand on coming in contact with a hot object.

• Sudden blinking when something falls in the eyes.

• Withdrawal of hand on getting a mild electric shock.