Which muscle tissue type has a striated appearance?

The muscle tissue types that exhibit a striated appearance are skeletal muscle and cardiac muscle.

Skeletal muscle is the most familiar type of striated muscle, characterized by its long, cylindrical fibers that are multinucleated and exhibit distinct cross-striations. These striations are due to the organized arrangement of actin and myosin filaments, which are integral to the muscle's ability to contract. Skeletal muscles are primarily voluntary, allowing for conscious control of movement.

Cardiac muscle, while also striated, is found exclusively in the heart. It has a unique structure where the muscle fibers are branched and interconnected, allowing for coordinated contractions that facilitate effective pumping of blood. Cardiac muscle is involuntary, meaning it operates without the need for conscious control, and its striations are similarly produced by the regular organization of actin and myosin.

On the other hand, smooth muscle lacks striations and is classified as non-striated. It is found in the walls of hollow organs such as the intestines and blood vessels and is responsible for involuntary movements, such as peristalsis and vessel constriction.

Thus, the correct choice accurately identifies that both skeletal and cardiac muscle types exhibit a stri