恒河猴脑垂体远侧部细胞的电镜观察

Ultrastructural Observation of Adenohypophysis Pars Distalis of Rhesus Monkey(Macaca mulatta)

应用透射电镜观察了恒河猴脑垂体远侧部含有的 6种细胞 ,即生长激素细胞、催乳激素细胞、促甲状腺激素细胞、促性腺激素细胞、促肾上腺皮质激素细胞和滤泡 -星形细胞。生长激素细胞呈圆形或椭圆形 ,分泌颗粒直径 2 0 0～4 5 0 nm。催乳激素细胞呈卵圆形或不规则形 ,胞核为不规则形 ,分泌颗粒直径 2 5 0～ 80 0 nm。促甲状腺激素细胞呈卵圆形或不规则形 ,分泌颗粒直径 10 0～ 2 5 0 nm。促肾上腺皮质激素细胞呈圆形或卵圆形 ,分泌颗粒直径 2 5 0～ 4 5 0 nm。促性腺激素细胞呈圆形 ,其椭圆形的分泌颗粒长径为 2 5 0～ 80 0 nm。滤泡 -星形细胞呈卵圆形或不规则形 ,有突起伸入相邻细胞之间 ,无分泌颗粒。

Under transmission electron microscope, the adenohypophysis pars distalis of rhesus monkey(macaca mulatta) have six cells types in common, i.e. somatotrophs, lactotrophs, thyrotrophs, adenocorticotrophs, gonadotrophs and folliculo stellate cells. Their ultrastructural features appeared characteristically. Somatotrophs are round or ellipse in shape, secretory granules are about 200 450 nm in diameter. Lactotrophs are ovoid or irregular in shape, contain irregular nuclei, secretory granules are about 250~800 nm in diameter. Thyrotrophs are ovoid or irregular in shape, secretory granules are about 100~250 nm in diameter. Adenocorticotrophs are round or ovoid in shape, secretory granules are about 250~450 nm in diameter. Gonadotrophs are round in shape, elliptic secretory granules are about 250~800 nm in length. folliculo stellate cells are ovoid or irregular in shape, contain processes extended adjacent cells, without secretory granules.