2. Twenty Questions Subject: CVS SYSTEM

3. Twenty Questions 12345 678910 1112131415 1617181920

4. 1. Needed substances are carried to the body cells by Blood

5. 2. The function of the atria is to. Receive blood that comes into he heart.

6. What sends out signals to make the heart muscles contract? pacemaker

7. 4. Blood vessels that carry blood away from the heart are called arteries

8. 5. When blood flows into the right atrium from the body is the blood full of oxygen or CO2?. CO2

9. 6. Blood leaves the heart and travels to the lungs through the Pulmonary arteries

10. 7. Blood returns to the left atrium from the lungs

11. 8. What component of blood carries oxygen to the body cells? Red blood Cells

12. 9. If a persons blood lacked ________ clotting could not take place platelets

13. 10. The liquid part of the blood is called the. plasma

14. 11. Which chamber receives blood returning from the body? Right atrium

15. 12. The wall of tissue that separates the heart into a right and left side is called the septum

16. 13. What traps disease causing bacteria? Lymph nodes

17. 14. When artery walls thicken as the result of a buildup of fatty materials this is a condition known as. Artherosclerosis

18. 15. Exercise is important for cardiovascular health because it strengthens the __________. heart

19. 16. Which human blood group is known as the universal donor? Type O

20. 17. Blood carrying oxygen is said to be. oxygenated

21. 18. Red blood cells are produced in the. Bone marrow.

22. 19. If your pulse rate increases, your hear is beating faster

23. 20. What instrument is used to measure blood pressure? sphygmomanometer