A patient has a narrowed coronary artery. Which explanation best links this to the heart muscle?
Answer and explanation
Correct answer: B. Less oxygen and glucose reach the heart muscle
- Step 1: The coronary arteries supply the heart muscle itself. Step 2. Narrowing reduces the supply of oxygen and glucose for respiration. Answer: Less oxygen and glucose reach the heart muscle, so it respires less and may stop contracting. Why not the others: A narrowed vessel reduces supply and cannot raise it.
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