| Health / Medical Topics |
Cardiac Muscle Contraction
Driven primarily by voltage-gated Ca+2 action potentials originating in sinoatrial pace-maker cells, Cardiac Muscle Contraction involves shortening of the gap junction-linked nonsyncytial striated heart myocytes in the atrial and ventricular chambers that forces movement of the blood through the circulatory system. (NCI Thesaurus)
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