Stimulus (physiology)

Stimulus (physiology)

In physiology, a stimulus is a detectable change in the internal or external environment. When a stimulus is applied to a sensory receptor, it elicits or influences a reflex via stimulus transduction. A stimulus is often the first component of a homeostatic control system. When a sensory nerve and a motor nerve communicate with each other, it is called a nerve stimulus. Any of your five senses will accommodate to a particular stimulus.

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The plural for stimulus is stimuli

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  • Stimulus — may refer to:*Sha Stimuli, a brooklyn based rapper. *Stimulus (band), an experimental band *Stimulus (physiology), something external that influences an activity *Stimulus (psychology), a concept in behaviorism *Input to a system in other fields… …   Wikipedia

  • Stimulus control — is the phenomenon of a stimulus increasing the probability of a behavior (operant response) because of a history of that behavior being differentially reinforced in the presence of the stimulus. In other words, stimulus control is basically… …   Wikipedia

  • physiology — /fiz ee ol euh jee/, n. 1. the branch of biology dealing with the functions and activities of living organisms and their parts, including all physical and chemical processes. 2. the organic processes or functions in an organism or in any of its… …   Universalium

  • stimulus — /ˈstɪmjələs / (say stimyuhluhs) noun (plural stimuli /ˈstɪmjəlaɪ/ (say stimyuhluy), /ˈstɪmjəli/ (say stimyuhlee) or stimuluses) 1. something that incites to action or exertion, or quickens action, feeling, thought, etc.; an incentive: *Australia… …   Australian-English dictionary

  • stimulus — n 1. incentive, impetus, fillip, provocative, motive, whet, Sl. shot in the arm; goad, prick, prod, poke, spur, jog, jolt, lash, whip, sting; impulse, urge, drive, push, itch; dictate, call; incitement, inducement, instigation, excitement,… …   A Note on the Style of the synonym finder

  • Plant perception (physiology) — In the study of plant physiology plant perception is a term used to describe mechanisms by which plants recognize changes in the environment. Examples of stimuli which plants perceive and can react to include chemicals, gravity, light, moisture,… …   Wikipedia

  • Plant physiology — is a subdiscipline of botany concerned with the function, or physiology, of plants.Salisbury, Frank B. Cleon W. Ross, 1992. Plant physiology , 4th ed. (Belmont, California: Wadsworth Publishing). ISBN 0 534 15162 0] Closely related fields include …   Wikipedia

  • Gastrointestinal physiology — is a branch of human physiology addressing the physical function of the gastrointestinal (GI) system. The major processes occurring in the GI system are that of motility, secretion, regulation, digestion and circulation. The function and… …   Wikipedia

  • Transduction (physiology) — In physiology, transduction is the conversion of a stimulus from one form to another. Transduction in the nervous system typically refers to synaptic events wherein an electrical signal, known as an action potential, is converted into a chemical… …   Wikipedia

  • Neural top down control of physiology — concerns the direct regulation by the brain of physiological functions (in addition to smooth muscle and glandular ones). Cellular functions include the immune system’s production of T lymphocytes and antibodies, and nonimmune related homeostatic …   Wikipedia

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