Which type of muscle is found in the heart?

The heart is primarily made up of cardiac muscle, which is a specialized type of muscle tissue that is unique to the heart. Cardiac muscle cells are striated like skeletal muscle but have distinct characteristics that enable them to function effectively in the heart. These cells are interconnected through structures called intercalated discs, which allow for rapid transmission of electrical impulses, enabling the heart to beat in a coordinated manner.

Cardiac muscle is involuntary, meaning it operates without conscious control, unlike skeletal muscle, which is typically under voluntary control. This involuntary nature is essential for the heart's role in automatically pumping blood throughout the body to maintain circulation. The specialized properties of cardiac muscle also contribute to its endurance and resistance to fatigue, allowing the heart to function continuously throughout a person’s life.