MaleMusFIG 1: The adult male sex muscles.

A. Epifluorescent images from transgenic animal expressing the unc-27 ::GFP reporter gene (Troponinl), left lateral oblique view. (Strain source: L. Jia and S.W. Emmons.) B. Illustrations highlighting area boxed in A, left lateral view. Sexually dimorphic areas are underlined. Lateral (dBWM and vBWM) Dorsal and ventral body wall muscle; (aolL and polL) anterior and posterior longitudinal, left; (cdlL) caudal outer longitudinal, left. Medial-lateral (dglL) Diagonal muscles, left; (grtL) gubernacular retractor, left; (aobL and pobL) anterior and posterior oblique, left. Medial (v/dsrL) Ventral and dorsal spicule retractors, left; (v/dspL) ventral and dorsal spicule protractors; (sph) sphincter; (ailL and pilL) anterior and posterior inner longitudinal; (gecL) gubernacular erector, left; (adp) anal depressor.