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Strains Definition


A muscle strain is an injury (partial tear) that damages the internal structure of the muscle. The tearing may be so small that one could only see it with a microscope or the tearing may be severe enough to cause internal bleeding and cause some muscle fibers to lengthen. If the damaged parts of the muscle actually pull away from each other, it is called a muscle rupture.

Muscle Fibers

Muscle Fibers
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