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Nitroglycerin has long been administered to human patients suffering from chronic chest pain (angina). This medication works because it | |
A. | mimics the action of signal receptors [Wrong Answer] |
B. | is broken down into hormones that affect the heart [Wrong Answer] |
C. | interferes with chemical cascades that trigger contraction of heart muscle [Wrong Answer] |
D. | breaks down into nitric oxide, which increases blood flow to the heart [Correct Answer] |