Which of the Following Statements Are True of Coronary Circulation

question 6

Multiple Choice

Which of the following statements are true of coronary circulation (Select all that apply) ?

• 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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