part_of starts_at ends_at upper vagina muscle of upper vagina EMAPA:29055 anatomical_structure The muscle of upper vagina (syn: muscular layer of upper part of vagina) (TS:24-TS:27) is the smooth muscle layer of the upper vagina. Marked by Crabp1 at E17 (Abler et al, 2011) and alpha smooth muscle actin and gamma smooth muscle actin. muscular layer of upper part of vagina muscle of vagina female lower urogenital tract muscle TS24 TS27