Jahangirfard Ramin, Shalizar-Jalali Ali, Shahrooz Rasoul, Najafi Gholamreza, Minas Najafi
Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
Vet Res Forum. 2019 Spring;10(2):159-163. doi: 10.30466/vrf.2019.80365.2068. Epub 2019 Jun 15.
In order to conduct this study, eight adult turkey heads were obtained. Pituitary glands were harvested following cranial bones removal and examined morphologically and anatomically as well as topographically. Then, tissue sections were prepared and stained using Hematoxylin and Eosin, Alcian blue, orange G and periodic acid-Schiff staining techniques. The results showed that turkey pituitary gland as a pea-sized structure is located in the ventral part of the cerebrum and composed of adenohypophysis and neurohypophysis parts. Moreover, histological analyses revealed that sinusoids are well-developed at the distal part of the adenohypophysis and irregular masses of endocrine cells exist among them. Distributions of basophilic cells in the distal part of adenohypophysis were significantly higher than those of other endocrine cells, while the acidophilic cells had the lowest distribution. Lower and higher numbers of chromophobe cells were also found compared to those of basophilic and acidophilic cells, respectively. These findings were mostly similar to the other birds' pituitary gland anatomical and histological features, but there were also differences in cellular elements distributions along with infundibular cavity topography.
为了开展这项研究，获取了8个成年火鸡头部。在去除颅骨后采集垂体，并对其进行形态学、解剖学以及局部解剖学检查。然后，制备组织切片，并用苏木精-伊红染色、阿尔辛蓝染色、橘黄G染色和过碘酸-希夫染色技术进行染色。结果表明，火鸡垂体呈豌豆大小，位于大脑腹侧，由腺垂体和神经垂体两部分组成。此外，组织学分析显示，腺垂体远端的血窦发育良好，其间存在不规则的内分泌细胞团块。腺垂体远端嗜碱性细胞的分布明显高于其他内分泌细胞，而嗜酸性细胞的分布最低。与嗜碱性细胞和嗜酸性细胞相比，嫌色细胞的数量分别较少和较多。这些发现大多与其他鸟类垂体的解剖学和组织学特征相似，但在细胞成分分布以及漏斗腔局部解剖方面也存在差异。
