Perfect mesenteries:Mesenteries which extend from the column into the coelenteron and are attached to the actinopharynx (Carlgren, 1949; p. 9). Complete mesenteries can be directive or non-directive mesenteries.

Transverse Diagram at the level of the Actinopharynx:

See also Mesenterial arrangement

See also Mesenterial Muscles

See also Incomplete Mesenteries.

See also Complete Mesenteries.

See also Imperfect Mesenteries.

See also Directive Mesenteries