In this video we will see how contraction of the cardiac striated muscle occurs, under normal conditions so that the cardiac muscle can contract, it needs an action potential that is dispersed in the cell through the membrane and the T tubules, this action potential Normally coming from the specialized driving system, we will see how important calcium is for the heart muscle to carry out its function and how the interaction between the strands occurs. It is very helpful to identify the channels responsible for the action potential, we must also analyze how the release of calcium is found in the reticulum and how this calcium is expelled from the intracellular medium to end the contraction.
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