sensory receptor


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sensory receptor

A sensory nerve ending, a cell or group of cells, or a sense organ that when stimulated produces an afferent or sensory impulse.

Classification

Exteroreceptors are receptors located on or near the surface that respond to stimuli from the outside world. They include eye and ear receptors (for remote stimuli) and touch, temperature, and pain receptors (for contact). Interoceptors are those in the mucous linings of the respiratory and digestive tracts that respond to internal stimuli; also called visceroceptors. Proprioceptors are those responding to stimuli arising within body tissues.

Receptors also are classified according to the nature of stimuli to which they respond. These include chemoreceptors, which respond to chemicals (taste buds, olfactory cells, receptors in aortic and carotid bodies); pressoreceptors, which respond to pressure (receptors in the aortic and carotid sinuses); photoreceptors, which respond to light (rods and cones); and tactile receptors, which respond to touch (Meissner corpuscle).

See also: receptor
Medical Dictionary, © 2009 Farlex and Partners

sensory receptor

see RECEPTOR.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Edward et al., (2005) states that the sensory receptors in the muscles, tendons and joints send sensory nerve signals that carry information about the extent of the muscle's shortening or lengthening, the extent of its tension and relaxation, the speed and strength of muscle contraction, the different parts of the body, and the accuracy of movement in the surrounding space and the time of its performance, thus helps this information on the accuracy of the player's performance of motor control through the control of the nervous system in the performance of movements acquired and mastery during the processes of learning and motor sports training.
(37) More likely explanations are messages from other high-threshold sensory receptors residing in connective tissues of the muscle and hip joint.
A hand rehabilitation device system that can improve the motor functions and sensory receptors of the hand has been developed.
Sensory receptors on the larval maxillae and labia of Heliothiszea (Boddie) and Heliothis virescens (F.) (Lepidoptera: Noctuidae).
Sensory analysis is an important factor in evaluating some food product quality and stability since no instrumental or chemical test can replace sensory receptors. Although objective methods measure factors indicative of oxidation such as decomposition products, only sensory evaluation quantifies the total perception of taste intensity or product quality.
Actin pegs and ultrastructure of presumed sensory receptors of Beroe (Ctenophora).
Uniciliated, non-ciliated and various other types of presumed sensory receptors have been described on the body surface and haptor of monogeneans and other Platyhelminthes [19,23,33,34].
There are no cutaneous sensory receptors or nerve fibers are seen but catecholaminergic sympathetic fibers can be demonstrated by aldehyde induced fluorescence.
Apparently, the sooth-sayers believe fish do not suffer when they are hooked and fighting for their lives, as scientists believe fish do not have a brain system or enough sensory receptors in the nerve cells to experience suffering.
"At the end of the day, your sensory receptors are all sending electrical signals to the brain," Scott Novich, neuroscientist at the Baylor College of Medicine in the US, was quoted as saying in a Live Science report.
Nishida, "Evolution of trace amine-associated receptor (TAAR) gene family in vertebrates: Lineage-specific expansions and degradations of a second class of vertebrate chemo sensory receptors expressed in the olfactory epithelium," Molecular Biology and Evolution, vol.
Belmonte, "Sensory receptors in the anterior uvea of the cat's eye: an in vitro study," Investigative Ophthalmology & Visual Science, vol.