. The Biological bulletin. Biology; Zoology; Marine biology. GOITROGENS AND Iiai LOCALIZATION 431. Figures 1 through 5 are photomicrographs of sections of larval specimens of Hyla versicolor. Figure 1. Thyroid gland from control specimen with histological evidence of moderate secretory activity. Figure 2. Arrow points to remnant of a thyroid follicle from an animal that received a thyroid-destroying dose of I131 and no goitrogen. Thyroid glands from most of the animals treated in this fashion were completely destroyed. Figure 3. Thymus gland from control specimen. Note cords of cells and small
. The Biological bulletin. Biology; Zoology; Marine biology. GOITROGENS AND Iiai LOCALIZATION 431. Figures 1 through 5 are photomicrographs of sections of larval specimens of Hyla versicolor. Figure 1. Thyroid gland from control specimen with histological evidence of moderate secretory activity. Figure 2. Arrow points to remnant of a thyroid follicle from an animal that received a thyroid-destroying dose of I131 and no goitrogen. Thyroid glands from most of the animals treated in this fashion were completely destroyed. Figure 3. Thymus gland from control specimen. Note cords of cells and small sinus. FIGURES 4 and 5. Thymus glands showing severe radiation damage. The one in Figure 4 has a single cyst, the one in Figure 5 a large cyst and two smaller 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 Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-; Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report; HighWire Press. Lancaster, Pa. [etc. ] : Lancaster Press, inc. [etc. ]
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