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- groove separating the atria from the ventricles
- contains the right and left coronary arteries, circumflex artery, and
coronary sinus
, sternocostal surface
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- anterior surface of the heart
- surface of the heart in contact with the ribs
pericardial cavity
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- potential space between the parietal pericardium and visceral
pericardium (epicardium)
- space is filled with fluid
papillary muscle
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- cone shaped muscular projections attaching the chord tendineae t the
walls of the ventricles
- helps to assure proper closure of the atrioventricular valves and prevents
back flow (regurgitation) of blood into the atria
posterior interventricular sulcus
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