. Annals of tropical medicine and parasitology. Parasites. 460 previous case, but the vesicles were larger, and the cells lining them of a lower columnar type, while the colloid was rather more plentiful. No. The gland showed little deviation from the normal type. The colloid was plentiful. The vesicles were here and there lined with a low columnar epithelium. An area of the parathyroid-like tissue was present. Serial sections in this, as well as in other cases, showed that the cellular parathyroid-like area gradually merged into the vesicular structure of thyroid tissue (fig. 12), from wh
. Annals of tropical medicine and parasitology. Parasites. 460 previous case, but the vesicles were larger, and the cells lining them of a lower columnar type, while the colloid was rather more plentiful. No. The gland showed little deviation from the normal type. The colloid was plentiful. The vesicles were here and there lined with a low columnar epithelium. An area of the parathyroid-like tissue was present. Serial sections in this, as well as in other cases, showed that the cellular parathyroid-like area gradually merged into the vesicular structure of thyroid tissue (fig. 12), from which it appeared to differ in no essential, except in the absence of formed vesicles and colloid. The net result of this experiment, therefore, is that of three goats two had thyroid glands which showed marked degrees of hyperplasia, while the glands were considerably smaller than normal All these animals increased considerably in weight under the conditions of the experiment. EXPERIMENT D.—The administration to goats of the carbonates of calcium, magnesium and sodium. In this experiment four female goats of the same age as those in the preceding experiments were employed. The conditions of the experiment were in all respects identical with those of B and C, except that in this case the animals were given only the carbonates of magnesium, calcium, and sodium in doses of five grains of each of these salts every other day. The experiment was carried out concurrently with the preceding one, and was intended mainly as a control to it. On the expiration of 107 days two of the four goats were taken at random and killed, their thyroids removed, weighed, and subsequently examined microscopically. The following table shows in each case the weight of the thyroid gland relative to the body weight of the animal: — No. Weight of animal on 20th Jan., in lbs. 275 371 Weight of animal on 7th May. in lbs. Increase or decrease in in weight in Weight of thyroid in a-ms. 1-5 gms. 2-2 gms.
Size: 2457px × 1017px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectparasites, bookyear19
