
	3D Medical Animations Close This information is provided by an independent source. Merck & Co. does not endorse and is not responsible for the accuracy of the content, or for the practices or standards of non-Merck sources. This information provided is not intended to be a substitute for professional medical advice. A licensed healthcare professional should be consulted for diagnosis and treatment of any and all medical conditions. The manufacturer of a product generally has the most complete information about that product. How to use How to use The world's largest library of 3D medical animations developed and copyrighted by Blausen Medical Communications. The Human Atlas figures rotating model, labeled slides, and printable text in addition to animated videos. Shows a video of the selected health topic. Controls play, pause, and restart of the video. Shows a summary of the selected health topic. Controls to scroll the text. Shows a 3 D model of the video. Controls to rotate the model. Shows slides from the video. Controls to change slides.

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This information is provided by an independent source. Merck & Co., Inc. is not responsible for this content. Please discuss any and all treatment options with your healthcare professional. The manufacturer of a product generally has the most complete information about that product.

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angina pectoris (an-ji´nә pek´tә-ris) acute pain in the chest resulting from not enough blood reaching the heart muscle myocardial ischemia ; pain is usually brought on by physical activity or emotional stress when those things increase the need for blood to supply the heart muscle. Some patients can predict the kinds of events that will precipitate an attack while others cannot. This condition is seen more often in men than in women, and in older persons than in younger persons. It is not a disease entity but a symptom of underlying disease in the arteries that supply the heart muscle. About 90 per cent of all cases can be attributed to coronary atherosclerosis.

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