Multiple Choice
Which of the following statements is correct in reference to heart function?
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18. The Heart
Electrical Conduction System of the Heart
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The cardiac muscle receives its supply of oxygenated blood by which of the following mechanisms?
A
Aortic arch
B
Coronary arteries
C
Pulmonary veins
D
Superior vena cava
Verified step by step guidance1
Understand that the heart requires a constant supply of oxygenated blood to function effectively.
Recognize that the coronary arteries are responsible for delivering oxygen-rich blood directly to the heart muscle (myocardium).
Identify the location of the coronary arteries, which branch off from the aorta just after it leaves the left ventricle.
Differentiate between the coronary arteries and other major blood vessels such as the aortic arch, pulmonary veins, and superior vena cava, which have different roles in the circulatory system.
Conclude that the coronary arteries are the specific vessels that supply oxygenated blood to the cardiac muscle, ensuring its proper function.
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