ISSN:
0362-2525
Keywords:
Life and Medical Sciences
;
Cell & Developmental Biology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
,
Medicine
Notes:
Changes in the hypophysis cerebri of the garter snake, Thamnophis radix radix Baird and Gerard, were found in the anterior lobe of the nineteen thyroidectomized animals reported. Chromophobic cells enlarge and acquire a basophilic granulation, to become apparently normal beta (basophilic) cells. These, along with the beta cells originally present, become vacuolated, lose their granular content, apparently by liquefaction of the granules, and finally degenerate. The hypophyses of animals kept at 90°F. after thyroidectomy do not show degeneration of beta cells to the same degree that glands from animals kept at 70°F. (approximately) do. A reduction in the number of alpha (oxyphilic) cells is found under all conditions. A brief description of the morphology and normal histology of the gland is included.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jmor.1050590309
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