title: [Macroscopical and histological studies on the spontaneous dividing area in umbilical blood vessels of cattle (author's transl)].
mesh_terms: D000818:Animals; D002417:Cattle / Q000033:anatomy & histology*; D005260:Female; D011247:Pregnancy; D014469:Umbilical Arteries / Q000033:anatomy & histology*; D014471:Umbilical Veins / Q000033:anatomy & histology*