نوع مقاله : مقاله پژوهشی
گروه علوم پایه، دانشکده دامپزشکی دانشگاه سمنان
عنوان مقاله [English]
Parathormone helps maintain plasma calcium concentration. Little researches have been done about anatomical and histological characteristics of the camel parathyroid gland in the world. The aim of this study was to determine the anatomical and histological structures of parathyroid glands of one-humped camels.
Macroscopic structures such as topographical and morphological characteristics of the Parathyroid glands of 40 one-humped camels (20 males and 20 females) were studied. Microscopic structures of these glands were studied after sectioning and staining with Hematoxylin-Eosin, Werhooph, and Toluidine blue. The parathyroid gland in the one-humped camel contained two pairs of internal and external parathyroid. The external part of the parathyroid gland is covered by the cranial end of the thyroid gland, whereas the internal part of the parathyroid gland is located into the caudal end of the thyroid lobe and near its ventral border. Data analyzing of weight and dimension of these glands by SPSS revealed that there are no significant differences between male and female camels. Without significant differences, the weight and dimension of the right external parathyroid gland are greater than the same left gland in both male and female camels.
Both chief and oxyphil cells are presented in the parathyroid glands of one-humped camels. The oxyphil cells are located between the chief cells both in small clusters or single and their population is smaller than the chief cells. This study reveals that there are not many differences in anatomical or histological characteristics of parathyroid glands between one-humped camels and other domestic mammals.