Atony

Atony

In medicine, atony (or "atonia", or "atonic") refers to a muscle that has lost its strength. It is frequently associated with the conditions Atonic seizure, Atonic colon, Uterine atony, Gastrointestinal atony (occurs postoperatively) and choreatic atonia.

Atony can also refer to the paralyzed or extremely relaxed state of skeletal muscles in rapid eye movement sleep (REM sleep) in most warm-blooded animals.

ee also

* Hypotonia
* Muscle weakness


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  • Atony — At o*ny, n. [Gr. ? slackness; a priv. + ? tone, strength, ? to stretch: cf. F. atonie.] (Med.) Want of tone; weakness of the system, or of any organ, especially of such as are contractile. [1913 Webster] …   The Collaborative International Dictionary of English

  • atony — [a′tə nē] n. [Fr atonie < LL atonia < Gr atonia, languor < a , not + tonos, tone < teinein, to stretch: see THIN] lack of bodily tone or muscle tone …   English World dictionary

  • atony — noun Etymology: Late Latin atonia, from Greek, from atonos without tone, from a + tonos tone Date: 1693 lack of physiological tone especially of a contractile organ …   New Collegiate Dictionary

  • atony — /at n ee/, n. 1. Pathol. lack of tone or energy; muscular weakness, esp. in a contractile organ. 2. Phonet. lack of stress accent. Also, atonia /euh toh nee euh, ay toh /. [1685 95; < LL atonia < Gk, deriv. of átonos unaccented, languid, lit.,… …   Universalium

  • atony — noun Lack of muscle tone; flaccidity or atonia See Also: atonic …   Wiktionary

  • atony — Relaxation, flaccidity, or lack of tone or tension. SYN: atonia, atonicity. [G. atonia, languor] postpartum a. a. of the uterine walls after childbirth. SYN: metratonia. uterine a …   Medical dictionary

  • atony — Synonyms and related words: adynamia, anemia, blah feeling, bloodlessness, cachexia, cachexy, cowardice, debilitation, debility, dullness, etiolation, faintness, fatigue, feebleness, flabbiness, flaccidity, impotence, languishment, languor,… …   Moby Thesaurus

  • atony — at·o·ny || ætÉ™nɪ n. muscular weakness; limpness; lack of stress (Phonetics) …   English contemporary dictionary

  • atony — n. (Med.) Weakness, debility, languor, exhaustion, prostration, asthenia, astheny, atonicity …   New dictionary of synonyms

  • atony — at·o·ny …   English syllables

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