The deepest layer in the wall of the heart is: Endocardium
The heart can be defined as an organ in the body whose primary duty is to pump blood to every part of the body to keep it working and functioning.
The heart is muscular and engages in more involuntary actions. It is very important that it continues to pump the blood for the body to remain alive.
In conclusion, The deepest layer in the wall of the heart is: Endocardium
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