MaleMusFIG 19: Caudal longitudinal muscles.

A. Low-power TEM showing the relationship of the caudal longitudinal muscle with the diagonal muscles, transverse section. B. TEM, higher magnification of boxed area in 19A. (N) Nucleus; (PAG) pre-anal ganglion; (vBWM) ventral body wall muscle. (Image source: N2Y [MRC] 579-20.)