Across
- 2. blood vessels that contain valves
- 5. red blood cell
- 6. high blood pressure
- 8. the smallest blood vessels
- 10. as the area of vessel decreases, blood velocity will _____
- 11. thrombin converts fibrinogen into ______
- 12. as the area of a vessel increases, blood velocity will ______
- 13. blood vessels with the thickest walls
Down
- 1. cell that plays big part of immune response
- 3. a single layer of epithelial cells lining blood vessels
- 4. hardening of arteries
- 7. blood liquid matrix
- 9. muscle only arteries and veins have this
- 14. swelling due to blocked lymph vessels