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- W2344703571 abstract "previously been recorded in the literature. We are indebted to our colleagues, Dr. B. Vincent Hall for the original observation of adrenal enlargement in Heterodon, Mr. Harold Kerster for interpretive assistance,. and Drs. Fred and Virgene Kavanagh for helpful criticisms. The adrenal glands of snakes are roughly elongate, slender, usually pinkish (in preserved specimens) structures found anterior to the kidneys in the mesenteries associated with the gonads. In females they are to be found between the ovary and oviduct, whereas in males they are closely adherent to the vas deferens adjacent to the posterior end of the testis. They are of much the same appearance and location in all snakes examined and are not, as described by Bourne (1936), streaks of cells along the lobes of the attenuated kidney. Apparently Bourne observed some structure other than the adrenal gland in the boa constrictor examined. The glands measure roughly 6 mm. to 50 mm. in length in snakes measuring between 395 and 1200 mm. in body length. Their width varies from about 1 to 5 mm., and their thickness is approximately 0.5 to 2 mm. The shape of the glands varies greatly and the right tends to be larger than the left. Gross comparison clearly reveals a wide disparity between Heterodon and other North American snakes in the relative size of adrenal glands. Expression of the difference in precise terms is unfortunately not simple. Linear measurements are not adequate because of irregularity of shape. Direct volumetric measurements were not feasible with the equipment at hand because of the very small sizes involved. We considered weight measurements to involve the fewest procedural errors, contrasting total adrenal weight (right and left glands combined) with total body weight. The glands were weighted after cleaning as much connective tissue from them as possible, and after quickly blotting excess fluid from their surfaces. The bodies of the snakes were similarly drained of preservative, blotted and weighed. The differences between the various snakes tested, as revealed by the procedures adopted, are of such magnitude as to be reasonably regarded as offsetting the necessarily unrefined techniques." @default.
- W2344703571 created "2016-06-24" @default.
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- W2344703571 date "2016-01-01" @default.
- W2344703571 modified "2023-09-27" @default.
- W2344703571 title "Adrenal Enlargement and Its Significance in the Hognose Snakes (Heterodon)" @default.
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