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What layer of the heart has direct contact with the blood?
O endocardium
O myocardium
o epicardium
aorta



answer is A.endocardium


Sagot :

*Heart wall has three layers
1. Epicardium > Outermost layer
2.myocardium > Middle layer
3.Endocardium > innermost layer

answer is Endocardium
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