twitch contraction
Look at other dictionaries:
Twitch — may refer to:* Muscle twitch, a muscle contraction ** Fasciculation, a small, local, involuntary muscle contraction ** Myoclonic twitch, a jerk usually caused by sudden muscle contractions **Myokymia, an continuous, involuntary muscle twitch that … Wikipedia
Twitch — Twitch, n. 1. The act of twitching; a pull with a jerk; a short, sudden, quick pull; as, a twitch by the sleeve. [1913 Webster] 2. A short, spastic contraction of the fibers or muscles; a simple muscular contraction; as, convulsive twitches; a… … The Collaborative International Dictionary of English
twitch — 1. To jerk spasmodically. 2. A momentary spasmodic contraction of a muscle fiber. [A.S. twiccian] * * * twitch twich vi to undergo a brief spasmodic muscular contraction <the muscle twitched> twitch n a brief spasmodic contraction of muscle … Medical dictionary
twitch muscle fibre — noun a muscle fibre involved in movement, either in low intensity movement and posture requiring strength of contraction (slow twitch muscle fibre) or in high intensity movement, such as sprinting and heavy lifting requiring speed of contraction… …
twitch — I. verb Etymology: Middle English twicchen; akin to Old English twiccian to pluck, Old High German gizwickan to pinch Date: 14th century transitive verb to move or pull with a sudden motion ; jerk intransitive verb 1. pull, pluck … New Collegiate Dictionary
twitch — I. v. a. Pull suddenly, snatch, jerk, yerk, pluck. II. n. 1. Jerk, quick pull. 2. Spasm, twitching, sudden contraction (as of the muscles) … New dictionary of synonyms
twitch — v 1. tug, pull, yank, pluck, vellicate, snatch; joggle, jolt, hitch, jar, jiggle, jounce, bounce; shake, agitate, churn; pinch, bite, nip, tweak, twist, wrench. 2. jerk, jump, move spasmodically; quiver, quaver, shiver, wriggle, wiggle, squirm. 3 … A Note on the Style of the synonym finder
twitch — v. & n. v. 1 intr. (of the features, muscles, limbs, etc.) move or contract spasmodically. 2 tr. give a short sharp pull at. n. 1 a sudden involuntary contraction or movement. 2 a sudden pull or jerk. 3 colloq. a state of nervousness. 4 a noose… … Useful english dictionary
Muscle contraction — See also: Twitch and Tremor Top down view of skeletal muscle Muscle fiber generates tension through the action of actin and myosin cross bridge cycling. While under tension, the muscle may lengthen, shorten, or … Wikipedia
Myoclonic twitch — A rapid, involuntary muscle contraction, particularly near the eye. Myoclonic tics resemble, and may be mistaken for, tics. Like tics, they tend to occur more often when the person is under stress; unlike tics, they are not preceded by any… … Medical dictionary
