Mihalache G, Indrei A, Mihalache G D
Disciplina de Anatomie şi Embriologie, Universitatea de Medicină şi Farmacie Gr. T. Popa, Iaşi.
Rev Med Chir Soc Med Nat Iasi. 1996 Jul-Dec;100(3-4):180-2.
Vasa vasorum is a vascular ensemble with nutritional role for the vascular wall. It's has the origin and the end at the surface of the bloods vessels. In the thickness of the external and internal tunics it represents by a capillary circulatory network. At the level of the adventitia of the veins, arterial vessels and vessels with a larger size, with a similar structure with the veins, has been observed. At the level of the middle tunic was observed capillary vasa vasorum. The density of the capillaries is bigger to the external tunic and the capillaries are in a smaller number to the internal tunic. The vascular wall has an intense metabolism, so we can explain the nutrient supply with two sources: an external source (vasa vasorum) and an internal source (the blood that flows in the vessels). The spermatic veins collect the blood from the testis, epididymis and the scrotum. This veins form a network around the arteries with a known functional role. This intimate vascular relation from the spermatic cord explains the arterial vasa vasorum particularities moreover the venous particularities. The drainage of the testicular veins is different on the left side and on the right side. The discussions are centered on the tension of the vascular wall. Its growth has an important effect: the compression of the capillary vasa vasorum. We discuss, too, about the conditions that reduce the perfusion. The consequence of an insufficient nutritional supply is the functional modification illustrated by varicocele.
血管滋养血管是一种对血管壁具有营养作用的血管集合体。它起源于血管表面并终止于血管表面。在内外膜的厚度中，它表现为一个毛细血管循环网络。在静脉、动脉血管以及尺寸较大、结构与静脉相似的血管的外膜层面，均观察到了血管滋养血管。在中膜层面观察到了毛细血管性血管滋养血管。外膜处的毛细血管密度更大，而内膜处的毛细血管数量较少。血管壁具有旺盛的新陈代谢，因此我们可以用两种来源来解释营养供应：外部来源（血管滋养血管）和内部来源（血管内流动的血液）。精索静脉收集来自睾丸、附睾和阴囊的血液。这些静脉在动脉周围形成一个具有已知功能作用的网络。精索这种紧密的血管关系不仅解释了动脉血管滋养血管的特殊性，也解释了静脉的特殊性。睾丸静脉的引流在左侧和右侧有所不同。讨论集中在血管壁的张力上。其生长具有重要影响：对毛细血管性血管滋养血管的压迫。我们也讨论了减少灌注的条件。营养供应不足的后果是由精索静脉曲张所表现出的功能改变。
