Across
- 3. A substance that is involved in the clotting of blood is _______.
- 5. A fatty substance called ______ is found in meats, dairy products, and egg yolks.
- 7. Blood is carried from the heart to other parts of the body by ______.
- 9. Supplying oxygen to and eliminating carbon dioxide from the bloodstream is the job of the _______ system.
- 12. Blood is carried to the heart from other parts of the body by _____.
- 14. High-density lipoproteins appear to help prevent ______.
- 15. Exercising steadily enough for the heart to supply oxygen needed by the muscles is _____ activity.
Down
- 1. Excess cholesterol is carried out of the bloodstream by _____ lipoproteins and eliminated.
- 2. Cholesterol is carried through the bloodstream by particles called _______.
- 4. Moving oxygen and nutrients to body cells and removing cell wastes is the job of the _______ system.
- 6. The heart of a fit person beats 9.5 million times ______ each year than that of an average person.
- 8. Cholesterol that will probably stay in the bloodstream is carried by ________ lipoproteins.
- 10. The number of times the heart beats per minute when a person is inactive is the ____ heart rate.
- 11. Exercising in short, fast bursts is _____ activity.
- 13. Your _____ is the number of times your heart beats per minute to pump blood through the body.