Original sentence: Hemodynamic influences: Abdominal aortic aneurysm is a focal degenerative process with predilection for the infrarenal aorta.Higher intraluminal pressure in patients with arterial hypertension markedly contributes to the progression of the pathological process.The diameter decreases from the root to the bifurcation, and the wall of the abdominal aorta also contains a lesser proportion of elastin.The elasticityand distensibility also decline with age, which can result in gradual dilatation of the segment.The histological structure and mechanical characteristics of infrarenal aorta differ from those of the thoracic aorta.The mechanical tension in abdominal aortic wall is therefore higher than in the thoracic aortic wall