Across
- 1. the chemical element of atomic number 11
- 7. each of the two upper cavities of the heart
- 11. activity requiring physical effort
- 13. a group of drugs that act to reduce levels of fats in the blood
- 14. an ester formed from glycerol and three fatty acid groups
- 15. a blood clot
- 18. obstruction of the blood supply
- 20. the enlargement of an organ or tissue from the increase in size of its cells
Down
- 2. muscular middle layer of the wall of the heart
- 3. drug to control heart rate, rhythm, and decrease blood pressure
- 4. surgical repair or unblocking of a blood vessel
- 5. membrane enclosing the heart
- 6. the chemical element of atomic number 8
- 8. the kinds of food a person habitually eats
- 9. each of the two main chambers of the heart
- 10. valve formed of three triangular segments
- 12. arteries which surround and supply the heart
- 16. body fluid that delivers necessary substances such as nutrients and oxygen to cells
- 17. the passage of blood through the blood vessels
- 19. main artery of the body