Across
- 5. system that circulates oxygen-rich blood
- 8. harmful pathogens
- 9. blood is composed of blood cells and
- 11. -penia
- 12. a key protein involved in blood clotting
- 14. large, immature cell that matures into a blood cell
- 15. the ability to resist pathogens and toxins
Down
- 1. commonly known as blood platelets
- 2. tonsils are located on either side of the throat
- 3. cells that destroy harmful pathogens
- 4. red blood cells
- 6. -path/o
- 7. detect and destroy foreign cells in the body
- 10. diagnoses & treats allergies & immune diseases
- 13. makes up a lg portion of the proteins in plasma