Oxygen supply to the heart
{"Image DocumentName": "Oxygen supply to the heart", "Image ImageDescription": "Normal tissues use 25% of oxygen in the blood. Heart muscle uses 70-80% of oxygen in the blood. Exercise can increase coronary blood flow 4-6 times. Exercise increases myocardial metabolism. If blood flow is restricted (due to coronary disease) chest pain results. Stress tests are done during exercise to measure the demand on the heart.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}