abnormal Mullerian duct morphology rudimentary Mullerian ducts MPheno.ontology MP:0009076 rudimentary Muller ducts not fully developed or remnants of the transient embryonic drainage tubes of the embryonic kidney (mesonephric tubules) that empty into the cloaca and in the female develop into the oviducts, uterus, and cranial vagina rudimentary paramesonephric ducts