ANATOMY

Detailed explanation-1: -Cardiac muscles are involuntary that is we don’t have any control over them. Therefore cardiac muscles are not voluntary and syncytial.

Detailed explanation-2: -Cardiac muscle, like skeletal muscle, is made up of sarcomeres that allow for contractility. However, unlike skeletal muscle, cardiac muscle is under involuntary control.

Detailed explanation-3: -Unlike the skeletal muscle, the cardiac muscle is controlled by the autonomic nervous system. Action potentials in the cardiac muscle are generated by the autorhythmic cells located in the sinoatrial node of the heart.

Detailed explanation-4: -Smooth muscles are also called involuntary muscles since you have no control over them. Smooth muscles work in your digestive system to move food along and push waste out of your body. They also help keep your eyes focused without your having to think about it. Cardiac (KAR-dee-ak) muscle.

Detailed explanation-5: -Unlike skeletal muscle, smooth muscle can never be under your control. Cardiac muscle is also an involuntary muscle, found only in the heart. The cardiac muscle fibers all contract together, generating enough force to push blood throughout the body.