adequate stimulus

adequate stimulus
a stimulus of the specific form of energy to which the receptor is most sensitive; called also homologous s.

Medical dictionary. 2011.

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  • Adequate stimulus — The adequate stimulus is a property of a sensory receptor that determines the type of energy to which a sensory receptor responds to with the initiation of sensory transduction.A sensory receptor s adequate stimulus is determined by the signal… …   Wikipedia

  • adequate stimulus — noun : a stimulus that acts only on an especially adapted end organ light is an adequate stimulus of the rods and cones of the retina …   Useful english dictionary

  • stimulus — 1. A stimulant. 2. That which can elicit or evoke action (response) in a muscle, nerve, gland or other excitable tissue, or cause an augmenting action upon any function or metabolic …   Medical dictionary

  • homologous stimulus — adequate s …   Medical dictionary

  • Noxious stimulus — A noxious stimulus is an actually or potentially tissue damaging event. [1] It is a prerequisite for nociception, which itself is a prerequisite for nociceptive pain[1] Noxious stimuli can either be mechanical (e.g. pinching or other tissue… …   Wikipedia

  • nervous system, human — ▪ anatomy Introduction       system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …   Universalium

  • sensory reception, human — Introduction  means by which humans react to changes in external and internal environments.   Ancient philosophers called the human senses “the windows of the soul,” and Aristotle described at least five senses sight, hearing, smell, taste, and… …   Universalium

  • All-or-none law — The all or none law is the principle that the strength by which a nerve or muscle fiber responds to a stimulus is not dependent on the strength of the stimulus. If the stimulus is any strength above threshold, the nerve or muscle fiber will… …   Wikipedia

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  • Reflex hammer — A reflex hammer is a medical instrument used by physicians to test deep tendon reflexes. Testing for reflexes is an important part of the neurological physical examination in order to detect abnormalities in the central or peripheral nervous… …   Wikipedia

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