Cardiomyocytes are specialized muscle cells found in the heart. They are responsible for the heart's contraction and relaxation, enabling it to pump blood throughout the body. These cells are unique because they can generate electrical impulses, which coordinate the heartbeat and maintain a steady rhythm. Cardiomyocytes are characterized by their striated appearance and ability to connect with one another through intercalated discs. This connection allows for synchronized contractions, essential for effective heart function. Damage to cardiomyocytes, such as from a heart attack, can impair the heart's ability to pump blood, leading to serious health issues.