Origin and Development of the Adrenal Gland
The adrenal cortex is of mesodermal origin with its parenchymal steroidogenic cells arising from the coelomic mesothelium. The most extensive study of human adrenal embryogenesis is that of Crowder, based on the Carnegie Embryological Collection (Crowder 1957). The following resumé is taken largely from his descriptions which must supersede, by virtue of their completeness, the earlier but still widely quoted studies of Keene and Hewer (1927), Uotila (1940), and Velican (1948).
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