<- Home <- Arhive <- Vol. 20, Issue 3, September 2012

Rom J Leg Med20(3)163-172(2012)
© Romanian Society of Legal Medicine

The consequences of the epigenesis of the encephala anastomotic arterial systems. Implications in pathology

G. S. Dragoi, P. R. Melinte, L. Radu, M. M. Botoran, I. Dinca, M. Catrina

Abstract: The existence of the anastomotic arterial systems as an exceptional way for irrigation of human brain raises problems regarding their genesis and evolution in time and space, the pattern of their anastomotic canals as well as the phenotype variability of their anastomosis. Our study achieved on fetus, new born, mature and old adult individuals by micro and macro anatomic methods draws the attention towards the epigenetic mechanism of encephalon anastomotic arterial systems. The authors consider that based on the ontogenetic criteria of the Willis anastomotic arterial system formation, the posterior cerebral artery is derived from the internal carotid artery and contributes to the genesis of the basilar artery. A particular attention is offered to the leptomeninges anastomotic arterial system, localized under pia mater, by the contribution of anterior, middle and posterior cerebral arteries. The microanatomic study of the internal carotid and basilar arterial wall proved the structural particularities of the muscular layer and a rich nervous supply .
Keywords: arterial anastomosis; anastomotic canals epigenesis; cerebral arteries; Willis arterial circle.

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