Myocardiocytes are specialised cells found in the heart. They are present in the heart and are capable of producing and transmitting electrical activity from one cell to another independently.
At the intercalated discs, where the cell walls converge, they can communicate via gap junctions. The exchange is effective.
As a result, cells form a syncytium in which ions can readily flow from one cell to another. As a result, the cardiac muscles almost always contract at the same time.