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Unique Structure in the Adrenal of the Female Opossum

Abstract

THE cortex of the adrenal of the Australian opossum (Trichosurus vulpecula) cannot be divided into the typical zona glomerulosa, zona fasciculata, and zona reticularis of Arnold (1866). Completely surrounding the medulla is a thin rim of cortex in which there is no zona glomerulosa, and which is divided into an outer zone containing fat, fatty acids, lipoids, cholesterol, etc., and an inner, practically lipoid and fat-free, zone. These two zones are to be described as the alpha and beta zones. Scattered amongst the cells of the beta zone are cells with oval nuclei which contain a number of unusually large karyosomes; these cells have an unknown function and are to be called gamma cells.

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References

  1. Arnold, J., Virch. Arch., 35, 64; 1866.

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  2. Bourne, G., NATURE, 131, 874, June 17, 1933.

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BOURNE, G. Unique Structure in the Adrenal of the Female Opossum. Nature 134, 664–665 (1934). https://doi.org/10.1038/134664b0

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