Science 1 electheart

1. Electrical Activity of the Heart 2. Cardiac Muscle • Branching cells • One or two nuclei per cell • Striated • Involuntary • Medium speed contractions 3. Excitation-Contraction…

Science heart

1. Electrical Activity of the Heart 2. Cardiac Muscle • Branching cells • One or two nuclei per cell • Striated • Involuntary • Medium speed contractions 3. Excitation-Contraction…