ARTERIAL SUPPLY OF THE PERINEUM OF BLACK BENGAL DOE

Abstract

The present study was conducted to make topographic descriptions and illustrations of the arterial supply of the perineum of 12 Black Bengal does during the period from July to December 2004 in the Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh. The animals were anaesthetized with pentobarbital sodium @ 20 mg / kg body weight IM and bled to death by giving incision on the right common carotid artery. Whole vascular system was flashed with 0.85% physiological saline solution and then 10% formalin was injected through the same route for well preservation. After preservation, the animals were injected with latex coloured with red carmine again through the right common carotid artery. Then the animals were dissected to study the arterial supply of the perineum of Black Bengal doe. The study revealed that the perineum was supplied by the urogenital and internal pudendal arteries. The urogenital artery was originated from the internal iliac artery near the ischiatic spine and after a short course to the lateral surface of the vagina it was divided into cranial and caudal branches. The cranial branch after supplying branch of the urethra, urinary bladder and ureter anastomosed with the uterine artery. The caudal branch coursed along the dorsolateral surface of the vagina and gave branches of the rectum, anus, vagina, vestibule, vestibular -land, vulva and a branch to the mammary gland. The internal pudendal artery was the termination of the internal iliac artery which after giving muscular branches to the levator ani, and coccygeus muscles coursed lateral to these muscles and gave vestibular branches and finally continued on the ventral aspect of clitoris.