Fast sodium current is key to the generation of a rapidly conducting action potential in multiple tissues. The rapid entry of sodium into the cell depends not only from the action of one protein (the ...

Proteins responsible for the pumping force of the heart beat and muscle cell contraction appear to cluster together in intercalated discs in an extremely organized fashion. Scientists from the NYU ...

Cardiac muscle tissue, or myocardium, is a type of muscle tissue that forms the heart. It contracts and releases involuntarily and keeps the heart pumping blood around the body. The human body ...