urogenital septum

ur·o·gen·i·tal sep·tum

the coronally placed ridge formed by the caudal portion of the urogenital ridges meeting in the midline of the embryo; it lies between the hindgut dorsally and the bladder ventrally.
References in periodicals archive ?
It results from abnormal closure of ventricular abdominal due to failure of convergence of cephalo-caudal and lateral folidings of embryo during blastogenesis associated with defective development of cloaca and urogenital septum.