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10/15/2021
1
Musculoskeletal and SkinModule-Fall 2021
Physiology LecturesLecture 3
Presented by:
Dr.Shaimaa Nasr AminAssociate Professor of Medical Physiology
The term contraction, as used in musclephysiology, does not necessarily mean“shortening.” It simply refers to activation ofthe force-generating sites within musclefibers—the cross-bridges.