the death of part or the whole of an organ that occurs when the artery carrying its blood supply is obstructed by a blood clot (thrombus) or an embolus. For example, myocardial infarction, affecting the muscle of the heart, follows coronary thrombosis. A small localized area of dead tissue produced as a result of an inadequate blood supply is known as an infarct. Infarcts also arise when venous outflow from an organ or tissue is obstructed, as occurs when the ovary or testis twist on their vascular pedicles (stalks), or when the sigmoid colon twists in volvulus.

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  • Infarction — In*farc tion, n. [See {Infarce}.] 1. The act of stuffing or filling; Specifically: (Med.) the formation of an infarct; an overloading and obstruction of any organ or vessel of the body; constipation. [1913 Webster] 2. An infarct[2]; as, a cardiac …   The Collaborative International Dictionary of English

  • infarction — index bar (obstruction) Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • infarction — 1680s, noun of action from L. infarcire (see INFARCT (Cf. infarct)) …   Etymology dictionary

  • infarction — ► NOUN ▪ the formation of an infarct …   English terms dictionary

  • infarction — [in färk′shən] n. 1. the development of an infarct 2. INFARCT …   English World dictionary

  • Infarction — In medicine, an infarction is the process resulting in a macroscopic area of necrotic tissue in some organ caused by loss of adequate blood supply. Supplying arteries may be blocked from within by some obstruction (e.g. a blood clot or fatty… …   Wikipedia

  • Infarction — The formation of an infarct, an area of tissue death due to a local lack of oxygen. For example, in a myocardial infarction there is death of myocardial (heart muscle) tissue due to sudden (acute) deprivation of circulating blood. This is usually …   Medical dictionary

  • infarction — /in fahrk sheuhn/, n. Pathol. 1. the formation of an infarct. 2. an infarct. [1680 90; INFARCT + ION] * * * ▪ pathology       death of tissue resulting from a failure of blood supply, commonly due to obstruction of a blood vessel by a blood clot… …   Universalium

  • infarction — UK [ɪnˈfɑː(r)kʃ(ə)n] / US [ɪnˈfɑrkʃ(ə)n] noun [countable/uncountable] Word forms infarction : singular infarction plural infarctions medical a situation in which blood cannot get to an area of tissue so that the tissue dies …   English dictionary

  • infarction — noun localized necrosis resulting from obstruction of the blood supply • Syn: ↑infarct • Hypernyms: ↑pathology • Hyponyms: ↑myocardial infarction, ↑myocardial infarct, ↑MI …   Useful english dictionary

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