Lee C S, O'Shea J D
J Morphol. 1976 Mar;148(3):287-304. doi: 10.1002/jmor.1051480303.
The extrinsic ovarian blood vessels were studied in 134 ewes. In view of recent evidence that uterine luteolysis may involve venoarterial transfer of prostaglandin F2alpha in the ovarian pedicle, particular attention was paid to the interrelationships between veins and arteries. The ovarian artery and utero-ovarian vein are large vessels of conventional structure and lie in close apposition. Their walls are slightly thinner on their apposing sides. The ovarian branches of the ovarian artery are very tortuous, and closely intertwined with the plexiform ovarian branches of the utero-ovarian vein. An extensive plexus of small veins surrounds the ovarian artery and its ovarian branches. Within this plexus are many thin-walled, dilated regions, interspersed with narrow, thick-walled segments. Valves are inconstantly present at sites of entry of branches of the plexus into the major veins. Small numbers of arterio-venous anastomoses are present in the distal part of the ovarian pedicle. Unless blood can flow in a veno-arterial direction through arterio-venous anastomoses or capillary beds, the structural barrier between uterine venous and ovarian arterial blood is substantial.
对134只母羊的卵巢外血管进行了研究。鉴于最近有证据表明子宫黄体溶解可能涉及卵巢蒂中前列腺素F2α的静脉 - 动脉转移，因此特别关注了静脉和动脉之间的相互关系。卵巢动脉和子宫 - 卵巢静脉是具有传统结构的大血管，彼此紧密相邻。它们相对一侧的管壁稍薄。卵巢动脉的卵巢分支非常曲折，与子宫 - 卵巢静脉的丛状卵巢分支紧密交织。广泛的小静脉丛围绕着卵巢动脉及其卵巢分支。在这个静脉丛中有许多薄壁、扩张的区域，其间散布着狭窄、厚壁的节段。静脉丛分支进入主要静脉的部位偶尔有瓣膜。在卵巢蒂的远端有少量动静脉吻合。除非血液能够通过动静脉吻合或毛细血管床以静脉 - 动脉方向流动，否则子宫静脉血和卵巢动脉血之间的结构屏障是相当大的。
