in nervous system physiology, the definition of a reflex is a ________.
A reflex action is the body's movement in response to a stimulus. Scientific use of the term reflex refers to a behavior that is mediated via the reflex arc. Reflex action has two types, the voluntary reflex action and involuntary reflex action, the voluntary reflex involves the body's response with the conscious of the brain while involuntary occurs without the conscious of the brain.