File:Kramer1942 fig04.jpg

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Fig. 4 Photomicrographs of sections of a 13 mm human embryo through the truncus arteriosus at semilunar valve levels

(X 50)

A Pulmonary valves, cut diagonally because of the sharp bend at this point in the truneus arteriosus.

B The aortic valves, from a slightly more caudal level in the same series where the plane of sectioning cuts the outlet more nearly transversely.



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Reference

Kramer TC. The partitioning of the truncus and conus and the formation of the membranous portion of the interventricular septum in the human heart. (1942) Amer. J Anat. 71(3): 343-370.

Cite this page: Hill, M.A. (2024, April 25) Embryology Kramer1942 fig04.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Kramer1942_fig04.jpg

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