NAME ___________________________________________________ DIRECTIONS: 1. Trace the flow of blood around the heart by connecting the dots. Use a blue crayon for the blood that is returning to the heart from the body with carbon dioxide (#'s 1-7). use a red crayon for the blood that is leaving the heart with oxygen and going out to the body (#;s 8-14). 2. Locate the following parts of the heart and label them next to letters a-f. You will use valve twice. aorta right ventricle left ventricle valve right atrium left atrium
3. What big blood vessel carries the blood from the heart out of the body?
4. Which chamber of the heart has a thicker muscle wall than the other chambers because it is the chamber that pushes the blood out to the body?