The Analysis Of The Microvascular Architecture In Developing Human Visual Cortex

Objective: The research of the human brain's microvascular architecture not only has an importance in knowing central visual damaging but also can provide significant reference in knowing other nerve system diseases. Methods: The fresh brain specimens in which dead within 24 hours, 7 from infant under one month and 4 from children about one and half a year, were fixed by celloidin, sliced up, alkaline phosphatase stained, observed under optical microscope, calculated with stereological method. The microvascular density of the visual cortex was quantitative analyzed and the microvascular of the medulla was qualitative studied. Results: (1) The microvascular density of visual cortex in deep layer is higher than it in superficial layer. (2) The microvascular density in children under 18 months is higher than it in infant under one month. (3) No matter in children or in infant the microvascular density in the 17th area was the highest, in the 18th area was higher, in the 19th area was less and in the JH was the lest.