Qureshi T A, Sultan R
Anat Anz. 1976;139(4):332-6.
Out of five species of fishes, selected for this investigation, only two have shown the presence of thyroid follicles in their head-kidneys. In Tor tor the thyroid follicles are larger than those of Cyprinus carpio. They are elliptical in shape in T. tor while spherical in C. carpio. The follicular epithelium in T. tor is thick and prominently built while in C. carpio it is weak in its appearance and structure. The colloid of the follicles in both the cases is uniformely homogeneous, non-vacuolated ans acidophilic in nature. The follicles are almost always located in close proximity to the posterior cardinal veins and their branches. It is, for this reason, argued that they might have migrated along these blood vessels. there is no any regular distribution and proper arrangement of these follicles.
在本次调查所选的五种鱼类中，只有两种在其头肾中显示出甲状腺滤泡。在印度野鲮中，甲状腺滤泡比鲤鱼的更大。印度野鲮的甲状腺滤泡呈椭圆形，而鲤鱼的呈球形。印度野鲮的滤泡上皮厚且结构明显，而鲤鱼的在外观和结构上则较薄弱。两种情况下滤泡的胶体均均匀一致、无空泡且呈嗜酸性。滤泡几乎总是紧邻后主静脉及其分支。因此，有人认为它们可能是沿着这些血管迁移的。这些滤泡没有任何规则的分布和恰当的排列。
