Characteristics of the vascular network in the hypothalamic median eminence in man

: The aim of these studies is to determine the sources of vascularization, the vascular areas, the appearance and density of the median eminence capillary network in prenatal human brains of both sexes. The brain blood vessels under examination were filled with a mixture of India ink and gelatin. Serial paraffin sections 20-40 microns thick, cleared after Spaltehol. Two arterial stems take part in median eminence vascularization together with their branches: a. hypophisialis superior and a. hypophisialis inferior. In order to quantify the density of the capillary network, the authors used the standard stereologic parameters--volume density and mean radius of blood vessels. No statistically significant sex-dependent differences were established regarding the appearance and density of the median eminence capillary network of the human brain in the course of the comparative testing of the mean values of these parameters in the male and female sex.