Abstract: The histological structure of the thyroids and parathyroids from 5 adult males of M. thibetanus were examined under light microscope. The results are as follows:The thyroid glands are composed of numerous follicles which are different in size. There are a little reticular connective tissues, microvasculature and cell groups among the follicles, but the capillaries and lymphatic vessels are abundant among the follicles. There are two parathyroid glands which lie on the posterior surface of super-mid part of outer lobe of the thyroids and a part of its base may be embeded within the thyroids. The two kinds of glands are separated each other by a thin connective tissue capsule.Two kinds of epithelial cells are present in the follicles-typical follicle-epithelialcells and C cells. The later is uniformly distributed and mainly occur in single cell or in occasionally in groups of 2-3 cells among the follicles in the thyroid. C cells are concentrated in the middle of the thyroid outer lobes and near medial margin of the median axis, and can not be found in other parts. C cells are round or oval, and are larger than that of the follicular cells. They range from 8.1 to 12.0μm and their nucleus range from 5.0 to 6.1μm, whereas the follicle-epithelial cells and their nucleus range from 6.2 to 8.4μm and from 5.1 to 6.0μm respectively. C cells appear in the intrafollicular and interfollicular cells.The parenchyma of the parathyroids mainly consists of dense packed groups of cells, which form a compact mass or maybe arranged as anastomosing cords. Besides oxyphil cells there are chief cells in the parathyroid glands. The two types of oxyphil cells i.e., dark and pale oxyphil cells, are visible under eight microscop. The oxyphil cells are also larger than those of chief cells and irregular in shape.

Key words: Macaca thibetanus, Thyroid gland, Parathyroid, C cell, Oxyphil cell

摘要： 本文对藏酋猴甲状腺及甲状旁腺的组织切片进行了观察描述,主要研究了甲状腺C细胞和甲状旁腺嗜酸细胞的形态和分布状况。

关键词: 藏酋猴, 甲状腺, 甲状旁腺, C细胞, 嗜酸细胞