4 major valves of the heart
-:- tricuspid, pulmonary semilunar, bicuspid, aortic semilunar
atrioventricular septum seperates
-:- the left side and right sides of the heart (also called interventricular septum)
the right atrium receives
-:- deoxygenated blood from the superior/inferior vena ...
✓ -:- fluid filled sac that surrounds the heart, allowing the heart to contract and
expand within the chest cavity with minimal friction
epicardium
✓ -:- the smooth, outer most layer of the heart, containing the coronary arteries
myocardium
✓ -:- the middle layer of the heart muscle (thickest layer)
endocardium
3|P a g e | G r a d e A + | 2 0 2 0 2 5
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