File:Jordan1918 fig05.jpg

Fig. 5. Section showing left forelimb-bud

Section approximately at level b~b’, figs. 2 and 3, showing left forelimb-bud below. (To compare with fig‘. 2 the top of the figure should be turned left; with fig. 3, to right.) Five spinal ganglia are shown; also the mesonephros, with the pest-cardinal vein dorsally. The section passes through the point where the yolk-stalk was attached to the primitive ileum (shown in transverse section as minute opening at extreme tip of mesentery). In the lower portion of the mesentcry are shown the vitelline arteries (superior mesenteric artery). This portion of the cclom contains considerable blood. The aorta is completely filled with blood. Within the umbilical cord, to left of mesentery, is shown the umbilical vein. Adjacent sections contain the largest of the aortic cell-clusters (fig. 7). Photo X 15.

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Reference

Jordan HE. A study of a 7 mm human embryo; with special reference to its peculiar spirally twisted form, and its large aortic cell-clusters Volume 14, Issue 7, pages 479–492, July 1918

Cite this page: Hill, M.A. (2024, April 25) Embryology Jordan1918 fig05.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Jordan1918_fig05.jpg

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