Sthohr's histology : arranged upon an embroyological basis (1906)
Sthohr, Philipp, 1849-1911, Lewis, Frederic Thomas, 1875 · Philadelphia : P. Blakiston's Son & Co. · leaf 320
Fig. 355.—Ckoss Section of Umbilical Cords. A, X 20, from an embryo of 2 mos.; B, X 3, at birth,al., .-Mlantois; art., artery; coe., coelom; v., vein; y. s., yolk stalk. collapsed in sections; their contraction is of interest since nerves have beentraced into the cord for only a \er}- short…
Histology · Microscopy
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