2. What does the heart look like? The heart: Has four chambers

3. Chamber Names: The two upper chambers The two lower chambers Plural - Atria

4. AORTA Rt. Atrium Septum Vena Cava Superior Vena cava Rt. Ventricle Lt. Ventricle Mitral Valve Lt. Atrium Pulm. Vein Pulm. Artery Aortic and Pulmonary valve

5. Blood that is oxygen poor and carbon dioxide rich. This blood is on its way to the heart to be redirected to the lungs for gas exchange. For educational purposes this blood is represented by the color blue On the right side

6. Blood that is oxygen rich and carbon dioxide poor. This blood is on its way back from the lungs to the heart to be redirected to the body. For educational purposes this blood is represented by the color red On the left side

12. Summary The diagram represents the pathway of the blood throughout the body. An acid necessary for enzyme action to occur is found within structure 1)structure 10 2)structure 2 3)structure 5 4)structure 4

13. The diagram represents several major circulatory pathways in the human body. Which sequence represents the normal blood flow in circulation to the lungs? 1)Structure 8 2)Structure 7 3)Structure 6 4)Structure 5

14. Which sequence is the correct pathway of blood through the human circulatory system? 1)2-3-6-8-1 2)1-3-5-7-8 3)8-6-7-2-1 4)3-4-5-6-2

15. How does your blood circulate through your body?