Macro-Anatomical Investigation of the Cerebral Arterial Circle (Circle of Willis) in Red Fox (Vulpes vulpes Leunnoleus, 1758)

In the study, formation of the cerebral arterial circle in red fox commonly spotted in Anatolia was examined. Five red foxes, regardless of their sexes were used in the study. Latex injection method was applied to the materials. Internal carotid artery and basilar artery were observed to form of the circle of Willis, elliptical and sides low around hypophysis. It was determined that internal carotid artery was at the basal surface of brain and at the lateral region of chiasma opticums and at rostrolateral hypophysis and divided into left and right rostral cerebral artery, medial cerebral artery and caudal communicans artery. It was also established that basilar artery extends to rostral and gives off caudal cerebellar artery, labyrinth artery and rami ad pontom bilaterally.