This increase in water retention, together with contraction of arteriolar smooth muscle and increase in the rate and force of cardiac contraction, results in a rise in blood pressure.
Considerable congestion of pulmonary arteries, arterioles , veins, venules, and alveolar capillaries accompanied by vascular engorgement was present in four cases.
Capillaries are formed as a complex system of branching blood vessels between arterioles and venules (microscopic veins) Those near the arteries are at a higher pressure than those near veins.
It is divided into a number of lobules, each containing clusters of two distinct cell types together with arteriolar blood vessels and capillaries, nerve fibres, and a few autonomic ganglion cells.
This drug relaxes arteriolar smooth muscle and has been used in the treatment of severe hypertension.
External injury to the alveolar wall may be the counterpart of arteriolar smooth muscle injury.
These branches become smaller and are differentiated into three distinct regions: pulp arterioles, sheathed arterioles , and terminal capillaries.
The bronchi and bronchioles did not show epithelial changes, and the pulmonary arteries and arterioles were normal in appearance.
In humans, there is no direct evidence that potassium protects against renal arteriolar or tubular lesions that occur in either hypertension or kidney disease.
Lesions present in the peritubular capillaries, arterioles and renal tubules were recorded.