Examlex
Validity is the extent to which an operational definition gives consistent results.
Tropomyosin
A protein that regulates muscle contraction by controlling the access of myosin to actin filaments.
Muscle Contraction
Muscle contraction is a physiological process where muscle fibers actively shorten or generate tension, often resulting in movement or the maintenance of posture.
Muscle Contraction
The process by which muscle fibers shorten, generating force and movement.
External Epithelium
The outermost layer of cells covering the body surfaces and organs, serving as a protective barrier.
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