Smooth muscle has thick and thin filaments arranged the same way as in skeletal muscle.
Smooth muscle has thick and thin filaments that are arranged in a different pattern compared to skeletal muscle.

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Smooth muscle has thick and thin filaments arranged in a different pattern compared to skeletal muscle. In smooth muscle, the thick and thin filaments are not arranged in repeating units called sarcomeres, as they are in skeletal muscle. Instead, they are arranged in a more irregular pattern, which contributes to the ability of smooth muscle to sustain contraction for longer periods of time.

Smooth Muscle Has Thick and Thin Filaments Arranged the Same