This particular blood vessel carries deoxygenated blood from the upper half of the body to the right atrium

This particular blood vessel carries oxygenated blood to the heart coming from the lungs.

This particular blood vessel carries deoxygenated blood away from the heart to the lungs.

Both the superior & inferior vena cava carry blood in to the

After blood leaves the right atrium, it enters the ___.

After blood leaves the left atrium, it enters the ___.

Which part of the heart is the largest and strongest?

After the blood leaves the left ventricle is enters the

___ is a group of organs and tissues that act as transfer stations carrying needed materials to cells and removing their waste products.

The heart pumps blood around the body through a network of blood vessels that is over ___ miles

___ are tiny blood vessels that carry blood to an from almost all body cells and connect arteries and veins.

___ takes place when blood travels from the heart, through the lungs, and back to the heart.

___ takes place when oxygen-rich blood travels to all body tissues except the lungs.

The pulmonary veins carry oxygenated blood back to the ___