Abstract
A method was developed for prenatal, post-mortem angiography, post-mortem angiography of the venous system of the brain, head and neck; its development was studied in the embryos and foetuses of 80 cattle, 20 sheep and 20 pigs with a crown-rump lenght of 19 to 155 mm. Radiological and corrosion preparations were studied. The embryonic and foetal venous systems were filled with thin barium sulphate through the umbilical and omphalic veins. The development and transformation of the cerebral veins and sinuses are compared and are related to the corresponding vascular anatomy of the adult animal and to man. The radio-embryological method for demonstrating cerebral vessels is also applicable to live foetuses.
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