Across
- 6. the number of times the heart beats per minute
- 9. the largest artery carrying oxygenated blood from the heart to the body
- 11. a white blood cell that defends the body against infection
- 12. the liquid component of blood containing water proteins and nutrients
- 14. a tiny vessel connecting arteries and veins with thin walls for gas exchange
- 16. the muscular wall dividing the left and right sides of the heart
- 17. a protein in plasma that attacks foreign antigens blood type
Down
- 1. an upper chamber of the heart that receives blood from veins
- 2. another name for platelet the cell fragment involved in clotting
- 3. a red blood cell containing hemoglobin that carries oxygen
- 4. a lower chamber of the heart that pumps blood out to the body or lungs
- 5. exercise that requires oxygen to produce energy occurring over a long duration
- 7. chronic high blood pressure
- 8. the protective outer layer of the heart wall
- 9. a thick muscular vessel that carries blood away from the heart
- 10. the squeezing phase of the heart muscle
- 13. a condition in which the body does not have enough healthy red blood cells
- 15. the relaxation phase of the heart when chambers fill with blood