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比格犬甲状腺显微与超微结构的观察
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李玉谷1，张媛1，程树军2，黄韧2，李楚宣1
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(1.华南农业大学 兽医学院，广东 广州510642； 2.广东省实验动物监测所，广东 广州510260)
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摘要：
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应用光镜和透射电镜技术，观察了3～6月龄比格犬甲状腺的显微和超微结构。结果表明，比格犬甲状腺实质由滤泡和滤泡旁细胞构成。滤泡呈圆形或椭圆形，直径20.22~220.00μm，平均90.80μm；由单层立方上皮细胞围成，细胞高度3.04~7.11μm，平均5.18μm，电镜下可见功能状态不同的两型滤泡上皮细胞；滤泡旁细胞很多，直径4.40~8.82μm，平均6.23μm，位于滤泡之间或镶嵌于滤泡上皮细胞之间，也可聚集在一起形成滤泡样结构，胞质内含有大量的分泌颗粒，电镜下也可见两种类型的滤泡旁细胞。 |
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关键词：
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甲状腺；显微结构；超微结构；比格犬 |
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中图分类号：S 858.292：Q 954.6 文献标识码：
A 文章编号：1673-4696(2006)03-0230-04 |
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Observation of microstructure and ultrastructure of thyroid of Beagle |
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LI Yu-gu1，ZHANG
Yuan1，CHENG Shu-jun2，HUANG
Ren2，LI Chu-xuan1 |
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（1.College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China；
2. Laboratory Animal Monitoring Institute of Guangdong Province, Guangzhou 510260, China） |
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Abstract:Microstructure and ultrastructure of thyroid of 3-6 month old Beagles were observed by light and electron microscopies. The thyroid consisted of follicles and parafollicular cells.The follicles were rounded or
elliptic-shape, ranging from 20.22 to 220.00μm, with an average of 90.80μm in diameter, which were composed of simple cuboidal epithelial cells.The epithelial cells were from 3.04 to 7.11μm, with an average of 5.18μm in height, and were functionally classified into two types under electron microscope. A large number of the parafollicular cells were located among the epithelial cells or the follicles, and sometimes they formed
follicle-like structure. They were from 4.40 to 8.82μm, with an average 6.23μm in diameter, contained numerous secretory granules in their cytoplasm, and also were divided into two types under electron microscope. |
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Key words: thyroid; microstructure; ultrastructure; Beagle |
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