Question

Briefly explain the term reflex action.

Answer 1

Reflex action:

1. Reflex action refers to an automatic or immediate activity of human body parts in reaction to stimuli.
2. It is due to a network of neuronal pathways known as reflex arcs that respond to an impulse before it reaches the brain.
3. No conscious thinking or knowledge of the automatic response is required for reflex action.
4. The reflex arc is the neurological circuitry that controls reflexes and responds to impulses before they reach the brain.

Kinds of reflex arcs:

1. Autonomic Reflex Arc: It influences the operation of internal organs.
2. Somatic Reflex Arc: It influences muscle function.

Examples:

1. Closing our eyes when strong light strikes us.
2. Withdrawing hands or legs abruptly when they come into contact with something hot or pricking.