Mesenterial muscles: Muscles attached to the mesenteries act to alter body size, primarily to contract the body. One side of each mesentery is occupied by longitudinal muscles (the retractor muscles), the other by transverse muscles. In many Actiniarians, there are also basilar muscles running along both sides of the base of the mesentery, close to the pedal disc (Carlgren, 1949: p. 8). Occurring with the basilar muscles are the parietobasilar muscles. In abasilar sea anemones (those lacking basilar muscles), parietal muscles occur where the mesentery inserts onto the column wall (Stephenson, 1928: p. 40).

 

See also Mesenterial arrangement

See also Incomplete Mesenteries.

See also Complete Mesenteries.

See also Perfect Mesenteries.

See also Imperfect Mesenteries.

See also Directive Mesenteries