In humans, the first lymphatic vessels are observed during embryonic weeks 6 and 7. 57 In mice, the first LECs arise at around embryonic day (E) 9.5 to 10, when a subpopulation of venous ECs in the ...

Common anastomoses of graft placement. A, Single renal artery to internal iliac artery and renal vein to external iliac vein. B, Multiple renal arteries to external iliac artery. C, ...