Arterial vascularization of the pelvic limb of the reindeer fetus

The  reindeer  is  a  representative  of  the order  artiodactyls,  most  of  the  individuals inhabit  the  territory  of  the  Northern  hemisphere. It is a significant hunting and commercial  species,  and  reindeer  husbandry  is the main branch of animal husbandry in the conditions of the Far North. The morphology of the reindeer has always been of interest to researchers. In different years, the architectonics  of  the  vascular  bed  of  the  reindeer have been  studied  by  many  researchers  [3, 4].  However,  in  the  available  literature sources, we have not found data concerning arterial blood supply to organs and tissues in reindeer  fetuses.  In  the  prenatal  period  of development, there is a restructuring of organs and tissues, and with them the vascular bed. The aim of the study was to study the arterial vascularization of the pelvic limb in a reindeer fetus, to give morphometric characteristics  to  the  arteries.  The  studies were conducted on 5 reindeer fetuses at the age of 4.0-4.5 months. The fruits were delivered to the Department of Animal Anatomy of the St. Petersburg State University of Veterinary Medicine from reindeer herding farms of the Republic of Sakha (Yakutia). The fruits were extracted after the slaughter of vazhenok for household  needs.  Classical  methods  were chosen as research methods: fine anatomical dissection, morphometry, photographing and vasorentgenography.  During  the  study,  it was found that the main arterial trunk of the pelvic limb in a reindeer fetus is the external iliac  artery.  Skeletotopy  and  angioarchitectonics of the main arteries of the pelvic limb of  the  reindeer  fetus  have  typical  patterns characteristic of adult animals. Morphometric parameters of the arteries are consistent with the topographic position of the muscle groups – a greater number of large arterial branches are noted in the hip area. The presence of collateral blood flow in the foot area is noted – the vessels of the dorsal and plantar surfaces are connected to each other due to the perforating metatarsal and perforating metatarsal arteries, as well as at the confluence of the axial and non-axial finger arteries.