Do the atria receive blood returning to the heart? Does the myocardium receive its blood supply from the coronary arteries?

1 Answer
Joëlle
Mar 9, 2017

The answer to both questions is yes.

Explanation:

#color(darkblue)"Atria of the heart"#
The heart has two atria that receive blood returning to the heart:

  • left atrium: receives blood from the lung circulation
  • right atrium: receives blood from the body circulation

home made illustration

#color(darkblue)"Coronary arteries"#
The coronary arteries are branches of the aorta and supply the myocardium (heart muscle) with oxygen rich blood.

http://medicineworld.org/news/news-archives/119075738-Feb-5-2009.html (adapted)

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