Chunhabundit P, Thongpila S, Mingsakul T, Somana R
Department of Anatomy, Faculty of Dentistry, Mahidol University, Bangkok.
Acta Anat (Basel). 1993;148(1):49-56. doi: 10.1159/000147522.
Microvascularization of the superior cervical ganglion (SCG) of the common tree shrew (Tupaia glis) was investigated by the vascular-corrosion-cast technique in conjunction with scanning electron microscopy. It was found that the SCG of the tree shrew is a highly vascularized organ. It receives arterial blood from branches of the external and common carotid arteries which enter the rostral and caudal portions of the ganglion. These arteries give rise to a subcapsular capillary plexus before branching off to form a group of densely packed intraganglionic capillaries. Moreover, the intraganglionic capillaries tend to follow a tortuous course that is essentially parallel to the longitudinal axis of the ganglion, and they form anastomoses with each other. In addition, the intraganglionic capillaries are also connected to a subcapsular capillary plexus. The capillaries of the SCG converge into venules and collecting veins which subsequently drain rostrally and caudally into the systemic veins. However, neither a pattern of blood vessels resembling glomeruli nor a portal-like intraganglionic microcirculation was observed.
采用血管铸型技术结合扫描电子显微镜，对普通树鼩（Tupaia glis）颈上神经节（SCG）的微血管构筑进行了研究。结果发现，树鼩的颈上神经节是一个血管高度丰富的器官。它从颈外动脉和颈总动脉的分支接收动脉血，这些分支进入神经节的头端和尾端部分。这些动脉在分支形成一组密集排列的神经节内毛细血管之前，先形成一个被膜下毛细血管丛。此外，神经节内的毛细血管往往走行迂曲，基本与神经节的纵轴平行，且它们相互形成吻合。另外，神经节内的毛细血管也与被膜下毛细血管丛相连。颈上神经节的毛细血管汇合形成小静脉和集合静脉，随后分别向头端和尾端引流至体静脉。然而，未观察到类似肾小球的血管模式或门脉样的神经节内微循环。
