| Abstrakt: |
Introduction: The parathyroid glands have great importance in the human physiology and anatomy due to that produce hormones necessary for growth and body functions. Materials and Methods: the parathyroid gland samples were collected from S. anomalus from 5 adult animals (males) from Baghdad Governorate's local markets, The specimens were fixed using formalin (10%), and the samples were washed well using ethyl alcohol (70%) for the removal of the fixative solution, and then specimens were dehydrated in ascending grades of ethyl alcohol (70%, 80%, 90%, 100%). Xylene was used to clear the samples which were placed in paraffin wax in an oven at 58-60° C . The prepared sections were stained using Haris Haematoxlin and Eosin (H&E) stains & Masson trichrome (MTC). Results: This study has proven the presence of two pairs of parathyroid glands in S. anomalus, which is located in contact with the thyroid gland and occupies two sites within its tissue, an apical site as well as embedded within the thyroid tissue. The gland appears as an oval or irregularly shaped lobe which thin connective tissue capsule surrounds and is an extension of the thyroid capsule, and septa extend from it to the internal tissue, dividing it into incomplete lobules. In addition, the capsule consists of collagen fibers, elastic fibers, a few reticular fibers, and nuclei of smooth muscle fibers. Histologically, the parathyroid gland consists of three types of cells: chief cells, which are the most common, oxphill cells, and water clear cells. These two types of cells are arranged in the form of columns or cell cords In this study, While the third type of cells are water clear cells, which is the few cell in comparison to the other types. Conclusion: The parathyroid glands are located on both sides of the thyroid glands in adult males of the S. anomalus. A connective tissue capsule surrounds parathyroid glands, and their internal histological structure consists of three cell kinds: chief, Oxphill, and water clear cells. [ABSTRACT FROM AUTHOR] |
