Abstract
This study examines comparative histological and histochemical Study of the Sebaceous Glands and sweat glands between the Gray Mongoose (Herpestes edwardsii) and the domestic cat (Felis catus), the researcher design was based on an experimental Twelve samples were obtained from skin that gathered in the Middle Euphrates region for the current investigation, including 6 gray mongooses(Herpestes edwardsii) and 6 domestic cats (Felis catus). Samples of skin were obtained from similar body regions in both groups to ensure uniformity in comparison analysis. Histological and Histochemical Staining Paraffin sections obtained from all examined skin regions (dorsal and foot pad) were subjected to routine histological and histochemical staining techniques.Hematoxylin and Eosin (H&E).Staining was performed to evaluate the general histological structure of the of the sebaceous and sweat Gland . The comparison included an analysis of the histological and chemical characteristics of the glands in terms of shape, distribution, density, and secretory activity between the two studied types. The gray mongoose had numerous, massive, well-formed glands for sebaceous that were positioned in the superficial layer of the skin and closely linked to hair follicles. On the basis of his they showed a standard alveolar (acinar) configuration made up of sebaceous clusters of cells with the vacuolated cytoplasm because of the amount of lipid and peripherally positioned nuclei.Sebocytes matured in a holocrine pattern, migrating through the lobule's center, accumulating lipid substance, and finally disintegrating to discharge sebum into the follicular canal as usual. Lipid obtaining throughout conventional tissue processing was reflected in the lobules' obvious nuclear morphology and light staining Sebaceous glands were identified in domestic cats, but they were a little widely dispersed, suggesting that comprehensive lipid-derived skin protection was not as necessary. The microscopic study of the gray mongoose's cutaneous layer reveals the existence of highly developed apocrine sweat glands, which are located in the dermis, typically in close vicinity to hair follicles. The glands were embedded in the dermal connecting tissue and resemble (coiled tubular forms). In cats, the eccrine sweat glands typically reside in the foot paw pads whereas they have an increasingly restricted distribution in the body.These glands were smaller in size than apocrine glands and composed of coiled tubular secretory portions inserted within the dermis. "Simple cuboidal epithelial cells" line the secretory region, and two separate layers of cuboidal cells line the ducts. compared to apocrine glands, the ducts of eccrine glands open up direct toward the surface of the epidermis. In overall, the lumina were smaller.