- The smallest lung units that include thin-walled air sacs directly linked with a network of small blood vessels (capillaries) where gas exchange occurs
- Chest pain that is caused by parts of the heart not getting enough blood; usually the result of atherosclerosis of the coronary arteries.
- Medications that thin the blood make the formation of blood clots less likely.
- The act of receiving therapy with anticoagulants
- The largest artery in the body; carries all the oxygenated blood pumped out by the left ventricle to the rest of the body via a branching network of smaller arteries
- Aortic valve
- A valve in the heart that separates the left ventricle from the aorta preventing blood from flowing backwards into the ventricle.
- An essential amino acid whose natural breakdown and metabolism generates the potent vasodilator nitric oxide
- A disease in which the muscles surrounding the airways of the lungs spasm and result in reversible narrowing of the airways, making it difficult to exhale.
- The two smaller chambers (one on each side) of the heart; the right atrium accepts blood from the veins throughout the body and the left atrium accepts freshly oxygenated blood from the lungs