Medical Dictionary


noun, often attrib mus·cle \ˈməs-əl\

Medical Definition of MUSCLE

:  a body tissue consisting of long cells that contract when stimulated and produce motion—see cardiac muscle, smooth muscle, striated muscle
:  an organ that is essentially a mass of muscle tissue attached at either end to a fixed point and that by contracting moves or checks the movement of a body part—see agonist 1, antagonist a, synergist 2

Illustration of MUSCLE

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