Q.1.
Blood vessels that carry blood to the heart.
Q.2.
Blood vessels that carry blood away from the heart.
Q.3.
After blood leaves the left atrium, it enters the ___.
Q.4.
After the blood leaves the left ventricle is enters the ___
Q.5.
___ is a group of organs and tissues that act as transfer stations carrying needed materials to cells and removing their waste products.
Q.6.
The heart pumps blood around the body through a network of blood vessels that is over ___ miles
Q.7.
___ takes place when blood travels from the heart, through the lungs, and back to the heart.
Q.8.
___ are tiny blood vessels that carry blood to an from almost all body cells and connect arteries and veins.
Q.9.
___ takes place when oxygen-rich blood travels to all body tissues except the lungs.
Q.10.
The job of the heart is to . . .