Circulatory System

2. Fibroserous sac that contains the heart
6. My Name
7. Red Blood Cell
9. Receives deoxygenated blood from the body through veins, namely superior and inferior venae cavae.
10. White Blood Cell
11. Regulates and supports the one-way flow of blood out of the left ventricle and into the aorta
13. Largest artery in the body
15. Starts with the closure of the semilunar valves and ends with the closure of the AV valves.
16. Controls blood flow from the right atrium into the right ventricle
17. Innermost layer of heart wall
19. Supports pulmonary circulation by carrying deoxygenated blood from the right ventricle of the heart into the lungs for gas exchange
20. Controls blood flow from the right ventricle into the pulmonary trunk

1. Pumps oxygenated blood into the aorta to be distributed to smaller arteries
3. Run along surface of the heart to carry oxygenated blood to the heart muscle
4. Controls blood flow from the left atrium into the left ventricle
5. Middle layer of heart wall
8. Outermost layer of heart wall
10. Receives oxygenated blood from the lungs via the pulmonary veins
12. Pumps deoxygenated blood into the pulmonary artery and then to the lungs to pick up oxygen.
14. Ventricular contractions that force blood out of the heart through the pulmonary and aortic valves
18. Fluid in Blood