Question

The diagram given shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the question.
Name the phenomenon that is depicted in the diagram. Define the phenomenon.

Answer 1

The given diagram depicts the phenomenon of reflex action. It is an involuntary and instantaneous movement in response to a stimulus. This phenomenon takes place with the help of reflex arc. It acts on an impulse before that impulse reaches the brain. It involves a sensory nerve and a motor nerve with a synapse between.