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KMID : 0377519820070040365
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Chung-Ang Journal of Medicine
1982 Volume.7 No. 4 p.365 ~ p.371
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Study on the Development of Adrenal Gland
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Suh Young-Dong
Lee Won-Bok
Rah Bong-Jin
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Abstract
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The adrenal glands of embryos and fetuses aged from six to thirty-eight weeks were studied to observe the developmental processes of the fetal and permanent cortices and the formation of the medulla. The results were summarized as follows: 1. The fetal cortex, situated between mesonephros and aorta. lost its contact with coelomic epithelium and formed cell clusters. These cells proliferated and became large eosinophilic cells on the sixth week of age. 2. The permanent cortea which was newly differentiated from the coelomic epithelium is found between the rpiltheium and the ventral surface cortex. On the eigth week, the cortex was surrounded by fibrous capsule and its composing were cells small and basophilic appearance. 3. The first apperance of vascularization was the blood cells scattered between the cells of fetal cortex on the sixth week of age, and they formed eventually small capillaries and venous sinusoids on the seventh and eighth weeks of age and expaned peripherally. 4. The primitive sympatthetic fibers were observed on the medial aspect of fetal cortex on the sixth week of age, and distributed among the whole area of the cortex, thereafter. Some of them formed the chromaffin nests.
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