BI-2266
Coronary heart disease
Biology · Secondary 4 · Medium · Coronary heart disease
A person smokes heavily and a coronary artery becomes narrowed. Which immediate effect is most likely on the heart muscle supplied by this artery?
- Increased production of red blood cells
- Improved elasticity of the artery wall
- Reduced oxygen supply causing chest pain
- Higher rate of cell division in heart muscle
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