Questions: The source of blood carried to capillaries in the myocardium would be the coronary sinus coronary veins coronary arteries fossa ovalis

The source of blood carried to capillaries in the myocardium would be the coronary sinus coronary veins coronary arteries fossa ovalis
Transcript text: The source of blood carried to capillaries in the myocardium would be the $\qquad$ coronary sinus coronary veins coronary arteries fossa ovalis
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Solution

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The answer is the third one: coronary arteries.

Explanation for each option:

  • Coronary sinus: This is a large vein that collects deoxygenated blood from the myocardium and returns it to the right atrium of the heart. It does not supply blood to the myocardium.
  • Coronary veins: These veins collect deoxygenated blood from the myocardium and drain it into the coronary sinus. They do not supply blood to the myocardium.
  • Coronary arteries: These arteries branch off from the aorta and supply oxygenated blood to the myocardium. They are the source of blood carried to the capillaries in the myocardium.
  • Fossa ovalis: This is a depression in the right atrium of the heart, a remnant of the fetal foramen ovale. It has no role in supplying blood to the myocardium.

Summary: The coronary arteries are responsible for carrying oxygenated blood to the capillaries in the myocardium.

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