What kind of muscle is responsible for voluntary movements in the body?

Striated muscle, also known as skeletal muscle, is responsible for voluntary movements in the body. This type of muscle is characterized by its banded appearance (striations) and is under the control of the somatic nervous system. When we engage in activities such as walking, lifting, or any form of purposeful movement, striated muscles contract as a result of conscious thought and motor brain activity.

The unique structure of striated muscles allows for powerful and precise muscle contractions, which are essential for carrying out everyday physical tasks. These muscles work in pairs; when one muscle contracts, the opposing muscle relaxes, allowing for smooth and coordinated movements.

Smooth muscle, on the other hand, is found in the walls of internal organs and is responsible for involuntary movements, such as the contraction of the intestines. Cardiac muscle is specialized muscle found only in the heart, and while it is striated, it is not under voluntary control. Involuntary muscle generally refers to muscles that function without conscious control, which further highlights the distinct role of striated muscle in voluntary movement.