Cerebral Arterial Innervations in Man

Abstract
In the past decade, a rising incidence of vascular disease in our aging population has brought about a spirited interest in investigations regarding the cause and pathogenesis of the various forms of vascular disease in man. During this period, a large number of scientific papers have been published dealing with the natural history, as well as with medical and surgical therapy, of certain selected cases of cerebral vascular disease. However, in the area of neurovascular anatomy, special studies are comparatively few and sporadic. The concept of cerebral vasospasm has been the subject of considerable interest to internist, neurologist, and neurosurgeon, alike. Evidence for the presence of cerebral vasospasm,4,9 affecting the various segments of the human cerebral arterial tree, as gathered from clinical data, angiographic observations and experimental results, has been for the most part uncertain and incomplete, if not controversial. The morphological basis for the vasomotor activity of