The umbilical vein in man during the perinatal period

Gorczyca, J.; Sokołowska-Pituchowa, J.; Skawina, A.

Folia Morphologica 45(2): 102-110

1986


ISSN/ISBN: 0015-5659
PMID: 3583108
Document Number: 272443
The umbilical vein is completely permeable during the first postnatal week. It is narrowed during the second week and obliterated by the eighth month. Obliteration of the vein is caused by the contraction of the smooth muscles and the hyperplasia of the connective tissue.

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