Which type of muscle is under direct voluntary control of the brain?

Which type of muscle is under direct voluntary control of the brain?

• A. Cardiac
• B. Autonomic
• C. Smooth
• D. Skeletal

Answer: (D)

Skeletal muscle is the type of muscle that is under direct voluntary control of the brain. This means that individuals can consciously contract these muscles to perform movements, such as walking, writing, or any other coordinated activity. The skeletal muscles are attached to the bones and are responsible for the movements of the skeleton. They are controlled by the somatic nervous system, which mediates voluntary motions. In contrast, cardiac muscle, found in the heart, operates involuntarily and is controlled by the autonomic nervous system, ensuring that the heart beats rhythmically without conscious effort. Smooth muscle, which lines the walls of internal organs such as the digestive tract and blood vessels, is also involuntary and controlled by the autonomic nervous system, managing functions like peristalsis and blood vessel dilation without conscious input. Autonomic muscle may refer to these involuntary muscles, further separating them from the voluntary control characteristic of skeletal muscle.

Skeletal muscle is the type of muscle that is under direct voluntary control of the brain. This means that individuals can consciously contract these muscles to perform movements, such as walking, writing, or any other coordinated activity. The skeletal muscles are attached to the bones and are responsible for the movements of the skeleton. They are controlled by the somatic nervous system, which mediates voluntary motions.

In contrast, cardiac muscle, found in the heart, operates involuntarily and is controlled by the autonomic nervous system, ensuring that the heart beats rhythmically without conscious effort. Smooth muscle, which lines the walls of internal organs such as the digestive tract and blood vessels, is also involuntary and controlled by the autonomic nervous system, managing functions like peristalsis and blood vessel dilation without conscious input. Autonomic muscle may refer to these involuntary muscles, further separating them from the voluntary control characteristic of skeletal muscle.