Use the drop down menus to label the bones of the skeleton.
Blood is pumped through the right
inferior( right, left, inferior ) pulmonary artery to the lungs where is oygenated.
Blood enters the right atrium and is then pumped down into the right ventricle.
pulmonary vein.( ventricle., aorta., pulmonary vein. ).
What is this bone called?
Veins contain less elastic tissue than arteries.