Circulatory System UMS

5. These are very small blood vessles and the only place where gas exchange can occur.
7. When blood flow to the heart muscle is blocked it can cause a heart _______.
8. This side of the heart pumps oxygen rich blood to your entire body.
9. This is how many chambers your heart has.
10. In diagrams blood that is high in carbon dioxide is shown as this color.
11. This side of the heart pumps blood high in carbon dioxide to your lungs so you can get rid of it.
13. This molecules is carried by the red blood cells to all of the cells of your body.
15. This tissue is made of many differnt types of cells and a liquid called plasma
17. These blood vessels carry oxygenated blood away from the left side of the heart to all over the body.
18. These blood vessles carry deoxygenated blood to to the right side of the heart to the lungs to get rid of it.
20. These types of cells found in your blood help fight infection.

1. This system gets the oxygen into your body and the circulatory system delivers it to all parts of your body.
2. The reason the cells need the oxygen delivered to them is they need it for the process of ________________ respiration.
3. The circulatory system operates through two ____________: the pulmonary circuit (heart to lungs) and the systemic circuit (heart to the rest of the body).
4. These are the two bottom chambers of the heart.
6. When your take your _________ on your wrist or your neck, you feel the pressure in your arteries as your heart pumps blood.
11. In diagrams blood that is high oxygen is shown as this color.
12. This is the 4 chambered muscular organ of the circulatory system
14. These are the two top chambers of the heart.
16. The heart is the main ___________ of the circulatory system.
18. These structures are found between the atria and ventricles and the ventricles and main arteries coming from the heart. They prevent blood from flowing in the wrong direction.
19. This is the thick wall between the right and left sides of your heart.