. The effects of inanition and malnutrition upon growth and structure. Starvation; Nutrition. EFFECTS ON THE THYROID AND PARATHYROID GLANDS 441 Hibernation.—Peiser ('06) concluded that the secretory activity of the thyroid gland in bats decreases during hibernation. The follicular epithelium was found flattened, "colloid cells" lacking, and the colloid reduced to a small amount. A hedgehog killed in February also showed no colloid in the thyroid follicles. Adler ('14) likewise observed an atrophy of the thyroid gland with a dis- appearance of follicular colloid in hibernating bats, a
. The effects of inanition and malnutrition upon growth and structure. Starvation; Nutrition. EFFECTS ON THE THYROID AND PARATHYROID GLANDS 441 Hibernation.—Peiser ('06) concluded that the secretory activity of the thyroid gland in bats decreases during hibernation. The follicular epithelium was found flattened, "colloid cells" lacking, and the colloid reduced to a small amount. A hedgehog killed in February also showed no colloid in the thyroid follicles. Adler ('14) likewise observed an atrophy of the thyroid gland with a dis- appearance of follicular colloid in hibernating bats, and concluded that the decreased thyroid secretion might cause the phenomena of hibernation. Adler. mm y. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Jackson, Clarence Martin, b. 1875. Philadelphia, P. Blakiston's son & co
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