What is the term for muscle that is involuntary and not under conscious control?

The term for muscle that is involuntary and not under conscious control is visceral muscle. This type of muscle is primarily found in the walls of hollow organs such as the intestines, bladder, and blood vessels, and it plays a crucial role in various automatic bodily functions, such as digestion and circulation. Visceral muscle contractions occur without the need for conscious thought, allowing these vital processes to function smoothly and efficiently.

Skeletal muscle, on the other hand, is under conscious control and is responsible for voluntary movements. Cardiac muscle is also involuntary but is specifically found only in the heart, responsible for pumping blood throughout the body. Striated muscle refers to muscle tissue with a striped appearance and includes both skeletal and cardiac muscle, but it does not describe the involuntary nature of visceral muscle. Therefore, visceral muscle is the most appropriate term for muscle that operates without conscious control.