[Arterial vascularization of the amygdaloid nucleus in man and in sheep]

These present studies, performed on human adult brains and on sheep with injection method, have shown that the amygdaloid nucleus has its special, separate and rich arterial system. The main source of its vascularization both in the human and sheep brains are 1-3 branches of the proximate segment of the middle cerebral artery. The supplementary source is formed by the deep ramifications of the superficial arterioles of the middle cerebral artery as well approximately by the small branches of the anterior choroidal artery. Each of these arterioles distributes and supplies only the amygdaloid nucleus and does not form precapillary anastomoses.