Students will learn that cardiac muscle is a specialized type of muscle tissue found only in the heart. They will study its unique characteristics, including its striated appearance, branching structure, and the presence of intercalated discs that facilitate synchronized contractions. Cardiac muscle cells, or cardiomyocytes, are connected by these discs, which contain gap junctions allowing for the rapid transmission of electrical impulses across the heart. This synchronization is crucial for maintaining a consistent heartbeat and efficient blood circulation. Students will also explore how cardiac muscle differs from skeletal and smooth muscle in terms of its function, regulation, and ability to contract continuously without fatigue.