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Hypertension means high blood pressure, and pulmonary arterial hypertension is a disorder in which the pressure in the pulmonary arteries (the blood vessels from the right side of the heart... More

Pulmonary arterial hypertension is a condition that results in high blood pressures in the blood vessels that carry blood from the right side of your heart to your lungs. ... More

The lungs are the main organ in your respiratory (breathing) system. The main job of the respiratory system is to move oxygen from the air into the blood, and... More

The heart is the main organ of your circulatory (or cardiovascular) system and is a pump that is mainly made up of muscle. The purpose of the heart is... More

The heart and lungs are very closely connected. Not only do they fit closely together in the chest, but they also work together to make sure that every part... More

The blood vessels in the lungs -- the pulmonary arteries, capillaries, and pulmonary veins -- are all essential to how the lung works. As discussed in the section on... More

You do have two sets of blood pressures -- "pulmonary" and "systemic". Usually when people talk about blood pressure, they are referring to the pressure that gets measured on... More