RESUMEN
The aim of the research was to investigate the gross morphological, histological and histochemical structure of epididymis in local pig of Mizoram. The epididymis was collected from six apparently healthy adult Zovawk pigs. The epididymis appeared as a straight elongated tubular structure with reddish-white colour comprises of three regions; head, body and tail. The biometrical parameter including the weight, length and thickness (head, body and tail) were found to be higher in the left side of epididymis than the right side. Histologically, the duct of epididymis was surrounded by irregularly arranged tissue. The parenchyma of epididymis consists of tubules with distinct boundaries of connective tissues. The collagen and reticular fibers were abundant in tunica albuginea and connective tissue present between the tubules. However, few elastic fibers occurred in the capsule and only in the blood vessels in both the left and right epididymis of Zovawk pig. Histochemical studies revealed that basement membrane of tubules, blood vessels and stereocilia shows strong Periodic acid Schiff activity, whereas the basement membrane of tubules and stereocilia showed more concentration of acidic mucopolysaccharides. This is the first study to provide the detailed morphological, histological and histochemical structure of Zovawk epididymis
RESUMEN
The Malayan sun bear is the smallest of the eight bear species. The aim of the research was to investigate the morphological and applied anatomical characteristics of the head region of the Malayan sun bear. The size of the head is large, broad and heavy in proportion to the body. The skull of the Malayan sun bear was mesocephalic according to the cephalic index (80.48). The skull length, skull width, cranial length and maximum skull height was 21.47 cm, 17.28 cm, 17.81 cm and 9.40 cm, respectively. The nasal length, nasal perpendicular height, nasal horizontal-transverse width and nasal circumference were 3.59 cm, 3.50 cm, 3.20 cm and 10.52 cm, respectively. The length and height of the mandible were 14.65 cm and 7.09 cm, respectively. There is no literature available on the regional applied anatomy of maxillofacial and mandibular regions of the Malayan sun bear. Therefore, this study was designed to provide information on morphological and applied anatomical studies on the head region of the Malayan sun bear. This is the first detailed study to provide morphological characteristics of the head region of Malayan sun bear and this information will aid the clinicians in the application of regional anaesthesia in Malayan sun bear