It also contains circular and longitudinal smooth muscle which helps to move food along by a process known as peristalsis.

This can be controlled using the annular and longitudinal muscles.

In living ophiuroids the plates are linked by longitudinal muscles.

The longitudinal muscles in the trunk are powerful but the transverse ones are weak.

As movement continues, circular, diagonal and longitudinal muscles in the rest of the body contract.

Retraction requires the contraction of two internal longitudinal muscles, known as the sternoglossi.

Circumferential and longitudinal muscles on the periphery of each segment enable the worm to move.

M. ozzardi and other nematodes have longitudinal muscles that run along the body wall.

Fish swim by contracting longitudinal red muscle and obliquely oriented white muscles.

Nematodes have longitudinal muscles along the body wall.