Question

What is a reflex action?​

Answer 1

Answer:

reflex action is an automatic (involuntary) and rapid response to a stimulus, which minimises any damage to the body from potentially harmful conditions, such as touching something hot. ... A reflex action follows this general sequence and does not involve the conscious part of the brain.

Answer 2

The reflex arc is a neuronal circuit that controls reflexes and acts on impulses before they reach the brain.

Explanation:

• Reflex action is an involuntary or immediate action by human body parts in reaction to a stimulus
• It's due to a network of neuronal pathways known as reflex arcs that respond to impulses before they reach the brain.
• When a specialized tissue gets a stimulus, it may affect the relationship of other tissues or the entire organism to the environment from which stimuli emerge, either directly or indirectly.
• Examples to see how reflex action works. When light works as a stimulus, the pupil of the eye changes size; when a pin pricks our hands or legs, or we touch something extremely hot, we quickly withdraw them; and when external irritants enter our nasal passages, we cough or sneeze..