Pulmonary arterial hypertension. Pulmonary arterial hypertension (PAH) is a rare form of high blood pressure. It occurs in the pulmonary arteries, which flow from your heart and throughout your lungs. Constricted and narrowed arteries prevent your heart from pumping adequate blood. Pulmonary Arteries Diagram - Chart - diagrams and charts with labels. This diagram depicts Pulmonary Arteries and explains the details of Pulmonary Arteries.
Pulmonary Arteries
