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Central Nervous System Microangioarchitecture in the Human Foetus from the 10thWeek to Parturition

Available data concerning the angioarchitecture of the foetal central nervous system are rare and contrasting.This is partly due to differences in experimental methods (injections of Indian ink, barium sulphate or silicon), but the main problem is represented by the difficulty of a clear identification of arteries and veins.Differences in sectioning methods (paraffin versus cryostate) and in section thickness may contribute to this last problem [1]. Duckett [1] analysed the vascularisation of twenty-five telencephalons from human foetuses between the 5th and the 18th week of life.He divided the development of blood vessels in two separate and successive phases: external and internal. [...]