Which of the Following Statements Are True of Coronary Circulation

question 72

Multiple Choice

Which of the following statements are true of coronary circulation? (Read carefully and select all of the correct statements.)

• A)The coronary arteries are branches of the ascending aorta.
• B)The blood in the coronary arteries is high in oxygen.
• C)Blockage of a coronary vessel may cause ischemia and necrosis of cardiac muscle.
• D)The coronary veins merge into the coronary sinus,which empties blood into the left atrium.

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