(1) This is dependent upon accessing the capillaries, venules , and arterioles of the dermis and subcutaneous tissues.(2) Cherry angiomas are composed of dilated capillaries and postcapillary venules .(3) Blood then goes back through the capillaries into venules , and then to larger veins until it reaches the vena cavae.(4) In the capillary bed, venules connect the arterial system to the venous system.(5) Little is known regarding the pathogenesis of PVOD or why the disease is localized to pulmonary veins and venules .
