A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the...

monosynaptic and are mediated by a simple reflex arc. A withdrawal reflex is mediated by a polysynaptic reflex resulting in the stimulation of many motor...

in organisms with a nervous system. A reflex occurs via neural pathways in the nervous system called reflex arcs. A stimulus initiates a neural signal...

contraction of the triceps muscle causes extension, and indicates a normal reflex. The arc involves the stretch receptors in the triceps tendon, from where the...

The pharyngeal reflex is different from the laryngeal spasm, which is a reflex muscular contraction of the vocal cords. In a reflex arc, a series of physiological...

Biceps reflex is a deep tendon reflex (DTR) test (also known as a muscle-stretch reflex test) that examines the function of the C5 reflex arc and the C6...

effort or conscious thought. The patellar reflex is a clinical and classic example of the monosynaptic reflex arc. There is no interneuron in the pathway...

sacral segments S2-S4. The absence of this reflex indicates that there is an interruption of the reflex arc, or damage to the spinal cord, which may be...

simple autonomic reflexes.[citation needed] The afferent limb of the gag reflex arc is conveyed by sensory afferents of the CN IX which terminate in the SN;...

The hiccup is an involuntary action involving a reflex arc.[citation needed] Once triggered, the reflex causes a strong contraction of the diaphragm followed...