Browning J, Gannon B
Acta Anat (Basel). 1986;126(2):73-7. doi: 10.1159/000146191.
The mucosal microvascular architecture of the rat colon is described from vascular casts and intravital microscopy. Arterial break-up into the mucosal capillary bed invariably occurs at the submucosal/mucosal interface. The mucosal capillaries drain into venules only at the opposing, luminal aspect, i.e., mucosal venules transverse the mucosa without receiving further capillary tributaries. Intravital microscopy of luminal flow confirmed cast predictions. Further, capillary flow was unusually unidirectional, i.e., rarely static or reversible. The possible functional importance of this particular microvascular architecture to water absorption in the colon is discussed.
通过血管铸型和活体显微镜观察对大鼠结肠的黏膜微血管结构进行了描述。动脉分支进入黏膜毛细血管床总是发生在黏膜下层/黏膜界面处。黏膜毛细血管仅在相对的腔面汇入小静脉，即黏膜小静脉横穿黏膜而不接受更多的毛细血管支流。对腔内血流的活体显微镜观察证实了铸型预测结果。此外，毛细血管血流异常单向，即很少静止或可逆。讨论了这种特殊微血管结构对结肠水吸收可能的功能重要性。
