The importance of the origin of vertebral arteries in cerebral ischemia in the rabbit

Abstract

The aim of this study was to verify whether experimentally induced total cerebral ischemia in rabbits actually corresponds to total ischemia on the basis of the origin of certain vessels. We observed morphological variations in the origin and course of the arteria vertebralis as one of the vessels supplying the brain with blood. Investigations were carried out on 50 adult New Zealand rabbits. We prepared corrosion casts of the arterial system using Duracryl Dental. We found that in 86% of cases (43 animals) the arteria vertebralis sinistra originated directly from the arteria subclavia sinistra, in 10% of cases (5 animals) it originated from the arcus aortae as an independent branch, and in 4% of cases (2 animals) it arose from the arcus aortae as a common trunk with the arteria scapularis descendens. The arteria vertebralis dextra originated from the arteria subclavia dextra in 98% (49 animals) of cases. In one case we observed two arteria vertebralis dextra with two different origins. Bilateral variability in the origin of the arteria vertebralis was observed in 12% of cases (6 animals). Our results show that ligation of the truncus brachiocephalicus and of the arteria subclavia sinistra do not necessarily cause total cerebral ischemia.

Arterial Blood Supply to the Spinal Cord in Animal Models of Spinal Cord Injury. A Review

“…The second branch originates from a common trunk with the right superficial cervical artery. This common trunk arises from the right common carotid artery (Mazensky and Danko, ). The fusion of bilateral VAs in place of formation of basilar artery is without a gap in 50% of cases, with one longitudinal gap in 30% of cases or with two oval gaps in 20% of cases (Mazensky et al, ).…”

Anatomical Arrangement of the Subclavian Artery Branches in the Rabbit and European Hare

“…We believe that the anatomical knowledge contributes to a better understanding of behavioral differences between familiar species in domesticated as well as in experimental studies and the veterinary daily practice, too [2,3,4,5].…”

Homozygous Pelger-Huet anomaly in three different crossbred rabbits: a case report

“…Cultivation of lymphocytes from the bone narrow and peripheral blood for chromosomal preparations was performed according to Parkanyi et al (2004). The corrosion casts were prepared using Duracryl Dental (Spofa-Dental, Czech Republic) as described by Mazensky and Danko (2010). …”