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the complex of actin and myosin constituting muscle fibers and responsible for the contraction and relaxation of muscle.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A protein complex composed of actin and myosin; it is the essential contractile substance of muscle fiber, active with MgATP.
Farlex Partner Medical Dictionary © Farlex 2012
A complex of actin, myosin, and associated proteins that is responsible for contraction in cells, especially muscle cells.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
Actomyosin(1) A term which considers the molecular motors—actin and myosin—as a single functional unit
(2) A G actin-like contractile protein complex found in platelets which consists of actin and myosin in a actin:myosin ratio of 100:1—muscle has a ratio of 7:1—and which appears with platelet activation.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
A protein complex composed of actin and myosin; the essential contractile substance of muscle fiber.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
actomyosina protein formed by the interaction of ACTIN and MYOSIN. It is closely concerned with the process of MUSCLE contraction.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005