The Region Between the Right and Left Pleural Cavities Is

Q41: The congenital heart defect in which the

Q42: Cells of the subendocardial conducting network<br>A) are

Q43: Inflammation of the heart's myocardium is called

Q44: The auricles are<br>A) earlike flaps on the

Q45: Which structure develops from the embryological chamber

Q47: Oxygen-rich blood returning from the lungs enters

Q48: Describe the function of the cardiac skeleton

Q49: The technique called _ uses a balloon

Q50: Valve responsible for preventing backflow of blood

Q51: The small cardiac vein lies on the<br>A)