One of the small peripheral blood vessel s between the arterioles and the true capillaries that contain scattered groups of smooth muscle fibers in their walls. [meta- + arteriole]

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met·ar·te·ri·ole -.är-'tir-ē-.ōl n any of the delicate blood vessels that branch from the smallest arterioles and connect with the capillary bed called also precapillary

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met·ar·te·ri·ole (met″ahr-tērґe-ōl) arterial capillary.

Medical dictionary. 2011.

Look at other dictionaries:

  • Metarteriole — A Metarteriole (or arterial capillary) is a short vessel that links arterioles and venules. Instead of a continuous tunica media, they have individual smooth muscle cells placed a short distance apart, each forming a precapillary sphincter that… …   Wikipedia

  • metarteriole — met·ar·te·ri·ole …   English syllables

  • metarteriole — ˌmed.ˌärˈtirēˌōl noun Etymology: meta + arteriole : a delicate blood vessel held to connect some arteries and veins and distinguished from a true capillary by the presence of smooth muscle in its walls …   Useful english dictionary

  • VAISSEAUX SANGUINS ET LYMPHATIQUES — L’angéiologie est une spécialité médicale autonome qui regroupe les études portant sur l’anatomie, la physiologie et la thérapeutique des maladies des vaisseaux périphériques: veines, artères, lymphatiques et capillaires. Cette discipline vise à… …   Encyclopédie Universelle

  • Capillary — Capillaries are the smallest of a body s blood vessels, measuring 5 10 μm in diameter, which connect arterioles and venules, and enable the interchange of water, oxygen, carbon dioxide, and many other nutrient and waste chemical substances… …   Wikipedia

  • Arteriole — An arteriole is a small diameter blood vessel that extends and branches out from an artery and leads to capillaries. [cite book last = Maton first = Anthea authorlink = coauthors = Jean Hopkins, Charles William McLaughlin, Susan Johnson, Maryanna …   Wikipedia

  • Microvessel — or microvasculature can refer to: Arteriole, a small diameter blood vessel that extends and branches out from an artery and leads to capillaries Capillary, the smallest blood vessels Metarteriole, a vessel that links arterioles and capillaries… …   Wikipedia

  • Capillary — One of the tiny blood vessels that connect the arterioles (the smallest divisions of the arteries) and the venules (the smallest divisions of the veins). The capillaries form a fine network in many parts of the body. Although minute, the… …   Medical dictionary

  • precapillary — Preceding a capillary; an arteriole or venule. * * * pre·cap·il·lary kap ə .ler ē, Brit usu kə pil ə rē adj being on the arterial side of and immediately adjacent to a capillary precapillary n, pl lar·ies METARTERIOLE * * * pre·cap·il·lary (pre… …   Medical dictionary

  • arterial capillary — a type of minute vessel lacking a continuous muscular coat, intermediate in structure and location between an arteriole and a capillary; called also precapillary, precapillary arteriole, and metarteriole …   Medical dictionary

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