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What is the characteristic appearance of muscle due to the presence of sarcomeres?

Smooth appearance

Striated appearance

The characteristic appearance of muscle due to the presence of sarcomeres is referred to as a striated appearance. Sarcomeres are the fundamental contractile units of muscle tissue, particularly in skeletal and cardiac muscles. They are organized in a repeating pattern and consist of alternating thick (myosin) and thin (actin) filaments. This arrangement creates distinct light and dark bands when viewed under a microscope, leading to the striated appearance observed in these types of muscle fibers.

The organization of sarcomeres and their arrangement into bands is what differentiates striated muscle from smooth muscle, which does not possess this organized structure and appears uniform or smooth. The striations are essential not only for visual identification under a microscope but also for the functional contraction of muscles.

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Ruffled appearance

Granular appearance

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