In order to explore the histological structure of zebra and to protect en- dangered species diversity, it is especially important to study the zebra adrenal his- tological structure. 2 zebra adrenals were studied by m...In order to explore the histological structure of zebra and to protect en- dangered species diversity, it is especially important to study the zebra adrenal his- tological structure. 2 zebra adrenals were studied by means of histological methods. The adrenal gland tissues were dissected into serial paraffin sections at the thick- ness of 3 μm. After HE and Masson staining, they were observed and photographed by the light microscope and Image-Pro Plus 6.0. The results show that zebra adrenal capsule is covered with thick connective tissue, which is about 230 μm. A large number of nerves and blood vessels are distributed in the capsule. The area of cortex is about 5 times larger than medullae. Zona glomerulosa is thin, about 300？m. The cells were arranged as column and ball. Zona fasciculata with the thickness of 1 750 μm is 6 times as thick as zona glomerulosa. The cells were ar- ranged in cord. Zona reticular with the thickness of 250 wm was closely adjacent to medulla and formed a jagged boundary. The medulla with the area of 4 mm2 was deeply dyed. It was concluded that some sympathetic ganglion cells were found in the medulla arranged in groups and surrounded with zona reticular cells but lots of the cells were found in zona reticular. Some connective tissue with chromaffin cells was found in the medulla center vein. The purpose of the present study provides reliable evidences for further study on morphology, physiology and pathology of the zebra.展开更多
基金Supported by National Natural Science Foundation Project of China(No.3047124931272517)~~
文摘In order to explore the histological structure of zebra and to protect en- dangered species diversity, it is especially important to study the zebra adrenal his- tological structure. 2 zebra adrenals were studied by means of histological methods. The adrenal gland tissues were dissected into serial paraffin sections at the thick- ness of 3 μm. After HE and Masson staining, they were observed and photographed by the light microscope and Image-Pro Plus 6.0. The results show that zebra adrenal capsule is covered with thick connective tissue, which is about 230 μm. A large number of nerves and blood vessels are distributed in the capsule. The area of cortex is about 5 times larger than medullae. Zona glomerulosa is thin, about 300？m. The cells were arranged as column and ball. Zona fasciculata with the thickness of 1 750 μm is 6 times as thick as zona glomerulosa. The cells were ar- ranged in cord. Zona reticular with the thickness of 250 wm was closely adjacent to medulla and formed a jagged boundary. The medulla with the area of 4 mm2 was deeply dyed. It was concluded that some sympathetic ganglion cells were found in the medulla arranged in groups and surrounded with zona reticular cells but lots of the cells were found in zona reticular. Some connective tissue with chromaffin cells was found in the medulla center vein. The purpose of the present study provides reliable evidences for further study on morphology, physiology and pathology of the zebra.
