sense organ

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Related to sensory system: nervous system, Motor system

sense organ

a structure in animals that is specialized for receiving external or internal stimuli and transmitting them in the form of nervous impulses to the brain

Sense organ

A structure which is a receptor for external or internal stimulation. A sense organ is often referred to as a receptor organ. External stimuli affect the sensory structures which make up the general cutaneous surface of the body, the exteroceptive area, and the tissues of the body wall or the proprioceptive area. These somatic area receptors are known under the general term of exteroceptors. Internal stimuli which originate in various visceral organs such as the intestinal tract or heart affect the visceral sense organs or interoceptors. A receptor structure is not necessarily an organ; in many unicellular animals it is a specialized structure within the organism. Receptors are named on the basis of the stimulus which affects them, permitting the organism to be sensitive to changes in its environment.

Photoreceptors are structures which are sensitive to light and in some instances are also capable of perceiving form, that is, of forming images. Light-sensitive structures include the stigma of phytomonads, photoreceptor cells of some annelids, pigment cup ocelli and retinal cells in certain asteroids, the eye-spot in many turbellarians, and the ocelli of arthropods. The compound eye of arthropods, mollusks, and chordates is capable of image formation and is also photosensitive. See Photoreception

Phonoreceptors are structures which are capable of detecting vibratory motion or sound waves in the environment. The most common phonoreceptor is the ear, which in the vertebrates has other functions in addition to sound perception. See Ear

Statoreceptors are structures concerned primarily with equilibration, such as the statocysts found throughout the various phyla of invertebrates and the inner ear or membranous labyrinth filled with fluid.

The sense of smell is dependent upon the presence of olfactory neurons, called olfactoreceptors, in the olfactory epithelium of the nasal passages among the vertebrates. See Olfaction

The sense of taste is mediated by the taste buds, or gustatoreceptors. In most vertebrates these taste buds occur in the oral cavity, on the tongue, pharynx, and lining of the mouth; however, among certain species of fish, the body surface is supplied with taste buds as are the barbels of the catfish. See Taste

The surface skin of vertebrates contains numerous varied receptors associated with sensations of touch, pain, heat, and cold. See Chemical senses, Cutaneous sensation, Sensation

Sense Organ

 

a specialized peripheral system by which an animal or human receives and partially analyzes various external stimuli. Each sense organ consists of receptors and auxiliary structures of varying complexity. The remote sense organs—the organs of sight, hearing, and smell—receive distant stimuli, while the organs of taste and touch receive stimuli only upon direct contact.

sense organ

[′sens ‚ȯr·gən]
(physiology)
A structure which is a receptor for external or internal stimulation.
References in periodicals archive ?
Kvasnica M.: Six-DOF Transformation of 2-D Floating Coordinate Frame in 3-D Coordinate System for Six DOF Sensory Systems" in Robotics.
Sharks, paddlefishes and several other aquatic vertebrates have similar sensory systems have a sixth sense, and can detect weak electrical fields in the water and use this information to detect prey, communicate and orient themselves.
Identifying individuals can be achieved by different sensory inputs, and by many accounts any sensory input elicits a representation of an individual that somehow becomes transmodal or independent of any sensory system. However, how the brain achieves transmodal integration facilitating individual recognition remains a mystery: Investigations in humans allowing direct access to site-specific neuronal processes are generally rare and have not focused on understanding neuronal multisensory integration for person recognition.
TRPV1, one of these sensory system channels, does belong to a large family of similar molecules common to many types of animals but they differ slightly from animal to animal - both in terms of their DNA and in terms of where they appear in the body.
Robert predicts that the newly revealed details of the fruit fly sensory system will inspire fresh perspectives on hearing.
Molecular mechanosensors of this sensory system are mechanically-activated ion channels.
"The sensory system that detects irritants is the first line of defense to protect the lungs against airborne toxic chemicals.
Another hypothesis has the sensory system divvying up space in the brain according to a genetic plan, "like a blueprint for a house," says David Rapaport of the University of California, San Diego, who has studied eye development.
At the American Association for the Advancement of Science annual meeting, a Northwestern University neuroscientist had argued that music training has profound effects that shape the sensory system and should be a mainstay of K-12 education.
Washington, Dec 8 (ANI): An international team of researchers have found that human body has an entirely unique and separate sensory system aside from the nerves that give most of us the ability to touch and feel.
While playtime is when some of these behaviours may be exhibited, it's also a chance for parents and caretakers to help children regulate their sensory system," says Metrick.
The new ticker symbol better reflects our identity as a global provider of innovative healthcare solutions focused on the diagnosis and treatment of central nervous and sensory system disorders for patients of all ages."