muscle fiber

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Related to Atrial myocytes: Atrial natriuretic peptide, Atrial myxoma

muscle fiber

A muscle cell, especially one of the cylindrical, multinucleate cells that make up skeletal muscles and are composed of numerous myofibrils that contract when stimulated.

mus′cle fi`ber

one of the structural cells of a muscle.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.muscle fiber - an elongated contractile cell that forms the muscles of the bodymuscle fiber - an elongated contractile cell that forms the muscles of the body
fibre, fiber - any of several elongated, threadlike cells (especially a muscle fiber or a nerve fiber)
muscle, musculus - one of the contractile organs of the body
somatic cell, vegetative cell - any of the cells of a plant or animal except the reproductive cells; a cell that does not participate in the production of gametes; "somatic cells are produced from preexisting cells";
striated muscle cell, striated muscle fiber - an elongated contractile cell in striated muscle tissue
smooth muscle cell - cells of the smooth muscles
References in periodicals archive ?
We continue to believe that targeting a particular potassium ion channel that is selectively expressed in human atrial myocytes, but not in human ventricular myocytes, offers a promising approach to the treatment of atrial fibrillation that may have a more favorable side effect profile, particularly with regard to the potential for ventricular arrhythmias, compared to currently available agents," stated P.
The major findings of our study are as follows: (i) Electrophysiological changes in DM group included prolonged IACT and increased AERPD; (ii) Increased inducibility of AF and LA interstitial fibrosis are evident and may constitute a substrate for the development of AF; (iii) APD90 and APD50 of atrial myocytes were prolonged in diabetic rabbits.
Electron microscopy revealed secretory granules in atrial myocytes, which structurally resembled storage granules in peptide-hormone-producing cells (1, 2).
Atrial natriuretic factor (ANF), a circulating hormone derived principally from cardiac atrial myocytes, plays an important role in the control of salt and water homeostasis and blood pressure.

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