P. MCDONNELL / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY P. MCDONNELL / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY
Angina pectoris. Illustration of a heart diseased with the cardiac condition angina pectoris. The term angina pectoris refers to a pain in the chest due to insufficient oxygen being carried to the heart muscle. Gripping pain usually is experienced during exertion, and disappears with rest. It is caused by disease of the coronary arteries (here, coloured yellow). These are narrowed by athero- sclerosis - fat deposits on the artery walls, that decrease the blood flow. Angina pectoris is a common condition, occurring earlier in men, and worsened by cigarette smoking. If drug treatment is not effective, bypass surgery may be required.
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