Counter current transfer of prostaglandins, inert gasses, steroid-and peptidehormones has been found between the utero-ovarian veins and the ovarian artery in man and several animal species, The substance transferred will, via the ovarian arterial blood, reach the ovary, tube and, in some speeies, the proximat part of the uterus in theipsifateralside Transfer has also been found.from the caudal uterine vein blood to the ipsilateral uterine artery. Preliminary results further indicate that local transfer cantake place of substances deposit ed in t he vaginal lumen.
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