This work aims to describe and systematize, in the wild boar, the sources that supply the rostral and caudal epidural rete mirabile, responsible by the encephalon irrigation. There were used 32 wild boar heads, 30 of them injected with latex 603, and the other 2 injected with odontological resin through the common carotid arteries. The common carotid artery divided into the internal and external carotid arteries. The internal carotid artery emitted the occipital and the condilar arteries and branched to form the rostral epidural rete mirabile, as its main source. The external carotid artery continuing as the maxillary artery from which emerge the middle meningeal artery and the external ophthalmic artery that cooperate with branches to the rostral epidural rete mirabile. The right and the left rostral rete mirabilis anastomosed to each other forming a net, that seems like an "H", and from them the brain carotid arteries were originated. The right and the left caudal epidural rete mirabilis ware mainly formed by the occipital artery with the cooperation of the condilar and the vertebral arteries and originating the basilar artery.
rete mirabile; encephalic vascularization; artiodactyls; wild boar; circulatory system
