Functional and structural components of reduced forearm venous distensibility in human hypertension

摘要: To the hypertensinologist, veins are of interest for two reasons. First, contribute both passively and actively to distribution blood volume between peripheral pulmonary vascular beds, thereby influencing cardiac filling regulating output. Second, may serve as an experimental model study smooth muscle which is not exposed increased intraluminal pressure associated with arterial hypertension. Although subtle elevation venous in uncomplicated hypertension cannot be ruled out, alterations function composition more likely result chronic neural or humoral influences than pressure. For our purposes, constitute pressure-independent changes