Age-related changes in the human renal veins and their valves
Chopard, R.P.; Miranda Neto, M.H.; Biazotto, W.; Molinari, S.L.
Italian Journal of Anatomy and Embryology 99(2): 91-101
1994
ISSN/ISBN: 1122-6714 PMID: 7741607 Document Number: 423206
Age-related anatomical changes in the human renal veins and their valves were studied. The principal changes were: 1. The muscle fiber bundles were noted to progressively atrophy as a function of age, while conservely the elastic fiber bundles hypertrophied. 2. The valves of the renal veins were observed to become gradually thicker with age as a result of the increased number of collagen fiber bundles.