Yoshida Keiko, Yasuda Masahiro, Nasu Tetsuo, Murakami Takayuki
Department of Veterinary Anatomy, University of Miyazaki, Miyazaki, Japan.
J Vet Med Sci. 2010 Jul;72(7):925-8. doi: 10.1292/jvms.09-0516. Epub 2010 Feb 24.
Avian liver is structurally different from that of mammal. There are only a few reports about the ultrastructure of the hepatic vessels and bile duct in birds. Casts of the hepatic vessels and bile ducts in chicken and duck were examined by a scanning electron microscope (SEM) to provide further detail. The sinusoidal vessels formed regular three-dimensional networks but the replicated bile ducts formed irregular ones. There was a dense plexiform network around each tubular cavity in biliary casts. This biliary plexus formed around a small branch of the portal vein. It was the transition between the bile capillaries and ductules. The present study shows that the liver of chicken and duck had the characteristic structure at the peripheral part of biliary system, i.e., biliary plexus.
禽类肝脏在结构上与哺乳动物的不同。关于鸟类肝血管和胆管超微结构的报道较少。通过扫描电子显微镜（SEM）检查了鸡和鸭的肝血管和胆管铸型，以提供更多细节。肝血窦形成规则的三维网络，而复制的胆管形成不规则的网络。在胆管铸型的每个管状腔周围有一个密集的丛状网络。这个胆管丛围绕门静脉的一个小分支形成。它是胆小管和小叶间胆管之间的过渡结构。本研究表明，鸡和鸭的肝脏在胆道系统的外周部分具有特征性结构，即胆管丛。
