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sensory end organ |
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sensory end organ
Etymology: L, sentire, to feel; AS, ende + Gk, organon, instrument any of the specialized nerve endings devoted to detection of specific environmental stimuli, such as smell, sight, hearing, temperature, or touch. end organ, n the expanded termination of a nerve fiber in muscle, skin, mucous membrane, or other structure. end organ, proprioceptor, n.pl the sensory end organs, located mainly in the muscles, tendons, and labyrinth, that provide information on the movements and position of the body. Four specific end organs are the muscle spindles; Golgi corpuscles, stimulated by tension; Pacini's corpuscles, stimulated by pressure; and bare nerve endings, stimulated by pain. end organ, sensory, n the sensory nerve fibers that end peripherally as either unmyelinated fibers or special structures called receptors. Receptors are situated in the skin, mucous membranes, muscles, tendons, joints, and other structures and also in such special sense organs as those for vision, hearing, smell, and taste. The receptors are organized into a system that relates them to the environment: exteroceptors, interoceptors, and proprioceptors. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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