In biology, a reflex, or reflex action, is an involuntary, unplanned sequence or action [1] and nearly instantaneous response to a stimulus. [2][3] The simplest reflex is initiated by a stimulus, …

The reflex is an automatic response to a stimulus that does not receive or need conscious thought as it occurs through a reflex arc. Reflex arcs act on an impulse before that impulse reaches …

The anatomical pathway of a reflex is called the reflex arc. It consists of an afferent (or sensory) nerve, usually one or more interneurons within the central nervous system, and an efferent …

When a person accidentally touches a hot object, they automatically jerk their hand away without thinking. A reflex does not require any thought input. The path taken by the nerve impulses in …

Apr 29, 2023 · A reflex arc is a pathway that a nerve impulse follows during a reflex action. Reflex arcs are highly beneficial in situations that require a quick response and do not involve …

Nov 13, 2025 · A reflex arc represents the fundamental neural circuitry underlying an involuntary, rapid response to a stimulus. This mechanism allows the nervous system to generate an …

A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons synapse in the spinal cord and the signal then travels through it into the brain.

A reflex arc defines the pathway by which a reflex travels—from the stimulus to sensory neuron to motor neuron to reflex muscle movement. Reflexes, or reflex actions, are involuntary, almost …

This infographic-style image breaks down the myotatic reflex into its steps. It also shows the inverse myotatic reflex, which strengthens the reflex action by relaxing the antagonist muscle …

The primary components of the reflex arc are the sensory neurons (or receptors) that receive stimulation and in turn connect to other nerve cells that activate muscle cells (or effectors), …