Ambrosi G, Camosso M E, Roncali L
Boll Soc Ital Biol Sper. 1980 Apr 15;56(7):641-6.
By means of intravascular India ink injections we have analyzed the early developmental phases of the vessel network in the cranial part of the chick embryo pons. At four and one half days of incubation the first radial endoneural vessels have already entered the ventral portion of the pons and formed with their branches a perigerminative network. Both the external and deep network progressively extend during the subsequent days, and at the 7th day the previously segregated cell groups begin to be encircled by tiny branches from the radial vessels. On the 8th day vessels appear also within the cellular groups and differences in vascular density between the various groups become detectable, apparently depending on their different cell density and differentiation degree. From this stage until the 12th day the vessel denseness undergoes a gradual, general increase, although differences in the vascularization degree between various groups are still appreciable.
通过血管内注射印度墨汁，我们分析了鸡胚脑桥颅部血管网络的早期发育阶段。在孵化4.5天时，第一批放射状神经内膜血管已经进入脑桥腹侧部分，并通过其分支形成了一个生发周围网络。在随后的几天里，外部和深部网络都逐渐扩展，到第7天时，先前分离的细胞群开始被放射状血管的微小分支包围。在第8天时，细胞群内也出现了血管，并且可以检测到不同细胞群之间血管密度的差异，这显然取决于它们不同的细胞密度和分化程度。从这个阶段到第12天，血管密度逐渐普遍增加，尽管不同细胞群之间的血管化程度差异仍然很明显。
