Macro and micromorphometric study of the adrenal glands in adult Male local dogs

This study was employed to achieve the histomorphometric features of the adrenal gland in local dogs. Ten adult healthy male local dogs were used in this study. Anatomically, the adrenal glands located on the cranial end of each kidneys, elongated to rounded in shape and creamy in color. The large peripheral cortex and small central medulla were grossly detected. The morphometric data that includes the weight, length, width showed some variation between the left and right gland. Histologically, a loose connective tissue capsule rich with elastic and collagen fibers was appeared surrounding the gland. The parenchymal tissues of the adrenal gland were divided into small inner medulla that composed of variant types of cells and blood sinusoids, while the large outer cortex consist of reticular, fasciculate, glomerular zones respectively from inner to outer. The micrometric analysis of adrenal tissues revealed that the average thickness in right and left medullary tissues was 39.8 ± 0.72 µm and 42.6 ± 1.21 µm respectively. Whilst, the average thickness of the three zones of the adrenal cortex were found 31.22 ± 0.65 µm, 29.41 ± 0.43 µm for reticular is, and 85.08 ± 5.71 µm, 72.2 ± 2.31 µm for fasiculata, and 41.5 ± 2.73 µm, 39.9 ± 2.60 µm for reticular zone in right and left gland respectively. In conclusion, the morphological and histological measurements showed differences between the right and left adrenal gland as well as its shape differences in adult male local dog can be used in species-identification markers.