Question

Which of the following muscle types are not voluntary muscles?

• A. Both striated and smooth
• B. Both cardiac and striated
• C. Both smooth and cardiac
• D. Cardiac, striated and smooth

Answer 1

The correct option is C Both smooth and cardiac

Smooth muscles are nonstriated muscles. The cells of this muscle are spindle-shaped and are uninucleated. Smooth muscles are involuntary muscles. They cannot be controlled by one's conscious will.
Cardiac muscle is the muscle found in the heart wall. It is an involuntary muscle that is responsible for the pumping action of the heart. The heart pumps and supplies the oxygenated blood to the different tissues in the body due to the action of the cardiac muscle. They cannot be controlled by one's conscious will.

Striated muscle or skeletal muscle is an involuntary muscle.

Thus, the correct answer is option C.