smooth muscle

smooth muscle
involuntary muscle tissue in the walls of viscera and blood vessels, consisting of nonstriated, spindle-shaped cells.
[1885-90]

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also called  involuntary muscle  

      muscle that shows no cross stripes under microscopic magnification. It consists of narrow spindle-shaped cells with a single, centrally located nucleus. Smooth muscle tissue, unlike striated muscle, contracts slowly and automatically. It constitutes much of the musculature of internal organs and the digestive system.

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Universalium. 2010.

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  • smooth muscle — n. a contractile type of muscle tissue controlled by the involuntary nervous system, occurring in the walls of the uterus, stomach, intestines, blood vessels, etc., and characterized by nonstriated, spindle shaped cells …   English World dictionary

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  • smooth muscle — noun 1. a muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart) • Syn: ↑involuntary muscle • Hypernyms: ↑muscle, ↑musculus •… …   Useful english dictionary

  • smooth muscle — involuntary muscle muscle that produces slow long term contractions of which the individual is unaware. Smooth muscle occurs in hollow organs, such as the stomach, intestine, blood vessels, and bladder. It consists of spindle shaped cells within… …   The new mediacal dictionary

  • Smooth muscle tissue — Smooth muscle …   Wikipedia

  • smooth muscle — smooth′ mus′cle n. anat. involuntary muscle tissue in the walls of viscera and blood vessels, consisting of nonstriated, spindle shaped cells …   From formal English to slang

  • smooth muscle cell — noun cells of the smooth muscles • Hypernyms: ↑muscle cell, ↑muscle fiber, ↑muscle fibre • Part Holonyms: ↑smooth muscle …   Useful english dictionary

  • smooth muscle hamartoma — a rare type of hamartoma consisting of smooth muscle bundles forming skin colored or hyperpigmented plaques on the skin of the trunk or the proximal part of a limb; it may be congenital or acquired …   Medical dictionary

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