myofibril


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Related to myofibril: myofilament, sarcoplasmic reticulum

my·o·fi·bril

 (mī′ə-fī′brəl, -fĭb′rəl)
n.
Any of the threadlike fibrils that make up the contractile part of a striated muscle fiber and are made up chiefly of actin and myosin filaments.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

myofibril

(ˌmaɪəˈfaɪbrəl)
n
(Biology) one of cylindrical organelles found in muscle fibre
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

my•o•fi•bril

(ˌmaɪ əˈfaɪ brəl, -ˈfɪb rəl)

n.
a contractile fibril of skeletal muscle, composed mainly of actin and myosin.
[1895–1900]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.myofibril - one of many contractile filaments that make up a striated muscle fiber
sarcoplasm - the cytoplasm of a striated muscle fiber
striated muscle cell, striated muscle fiber - an elongated contractile cell in striated muscle tissue
sarcomere - one of the segments into which a myofibril is divided
fibril, filament, strand - a very slender natural or synthetic fiber
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

my·o·fi·bril

n. miofibrilla, fibrilla diminuta delgada del tejido muscular.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
Table 1: Effect of feed restriction on myofibril diameter and sarcomere length of Najdi lambs
Several authors have suggested that delayed onset muscle soreness results from damaged, poorly compliant myofibrils. (6) Law and Herbert hypothesized that because warm-up increased muscle temperature, it may have improved myofibril compliance and consequently limited the damage and soreness associated with stretch injury.
The lower water-holding capacity was probably caused by depressed myofibril swelling when the myofibrils were irrigated with 0.6 M of sodium chloride brine containing calcium.
The breaking or fragmentation of the myofibril protein strands by these natural enzymes result in improved tenderness [26].
A myofibril is like a hot dog surrounded by a thin, holey skin (SR).
Thus in patients with MPD the need for an adequate diet in both energy and protein content in order to sustain baseline myofibril turnover is mandatory.
(6,17) Exercise-induced muscle damage is characterised by a disruption of the sarcolemma, (2) sarcotubular system, (2,4) contractile components of the myofibril, the extracellular matrix and the cytoskeleton.
This phenomena is called myofibril hypertrophy (as discussed by Alway, Winchester, Davis et al, 1989) or hyperplasia (as discussed by Antonio and Gonyea, 1993).
Hearts from SHS-treated rats stained with Masson trichrome showed extensive fibrosis and myofibril disarray at the 200X magnification (Figure 1C).
Structural abnormalities included loss of lateral alignment of myofibrils, perturbation of myofibril anchorage to the sarcolemma, abnormal mitochondrial number and organization, and loss of nuclear shape and positioning.