Reflex Action

Definition

A reflex action refers to an automatic response by our body without conscious thought, usually occurring in response to a stimulus. It is a rapid and involuntary reaction designed to protect us from harm or maintain balance.

Related terms

Stimulus:

A stimulus is any event or situation that provokes a response or reaction in an organism.

Spinal Reflex Arc: This refers to the neural pathway involved in generating reflex actions. It follows a specific sequence where sensory input travels through sensory neurons, interneurons process information in the spinal cord, and motor output is sent via motor neurons.

Reaction Time: Reaction time is the interval between the presentation of a stimulus and the initiation of a response. In reflex actions, this time is generally very short, as they bypass conscious thought processes.