1
the layer of cells that covers the interior of the heart
2
The double membrane that covers the exterior of the heart
3
The thick wall of muscle tissue of the heart
4
Each of the lower chambre of the heart
5
The valves that prevent the blood from coming back into the ventricles
6
Each of upper chambre of the heart
7
The valve located between the left atrium and ventricle
8
The artery that carries blood from the left ventricle to the body
9
The veins that carry blood from the body to the right atrium
