任脉、督脉的胚胎发生学探讨OACSTPCD

This article discussed the discovery of the residual embryonic marks of Ren and Du channels by comparing their descriptions in Canon of medicine with the knowledge of embryonic development. As the three germ layers of the gastrula develop ,they generate these basic structures. The tissues of the endoderm fold interiorly to form the primitive digestive duct. As the sclerotome,myotome(hypomere),and dermatome segments of the mesoderm layer wrap around the endoderm they fuse along the anterior midline of the body. This is the Ren channel,as represented by the linea alba. With the closure of the anterior body wall,the residual structures of the allantois and yolk sac make up the branch of the Ren channel. The Du channel follows the supraspinal ligament ,along the posterior line of the body. It is the joined tissue between the erector spinae muscles and vertebrae. It develops from the epimere cells of the myotome and sclerotome segments while the neural ectoderm folds posteriorly and gives rise to the neural tube. Also ,the descriptions written in Canon of medicine demonstrate a clear understanding of the origins of urethral and vaginal canals.