BI-1187
Coronary heart disease
Biology · Secondary 3 · Medium · Coronary heart disease
Which statement about coronary heart disease (CHD) is correct?
- It reduces blood flow through coronary arteries to the heart muscle.
- It blocks the pulmonary artery, stopping blood flow to the lungs.
- It increases oxygen content of blood in the coronary veins.
- It causes valves in the heart to close permanently.
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