Across
- 2. system. blood circulates in the confines of tubular vessels.
- 4. an iron-containing protein.
- 7. is plasma from which the proteins involved in blood clotting have been removed.
- 15. system. the heart pumps hemolymph out into the body cavity or at least through parts of the cavity.
- 16. are elastic blood vessels that carry blood away from the heart to the organs and tissues of the body.
- 17. originate in the bone marrow and colonize the lymphoid tissue,
- 18. are the least numerous WBC
- 19. is the circulating fluid of animals with an open circulatory system.
- 20. When B cells are activated.
- 21. are disk-shaped cell fragments that initiate blood clotting.
Down
- 1. in bone marrow by a process called
- 3. large vessels that carry blood from the body tissues to the heart.
- 5. Formed by O2 and hemoglobin
- 6. Blood contains a fluid matrix called?
- 8. are phagocytic and ingest foreign proteins and immune complexes rather than bacteria
- 9. most numerous blood vessels in an animals body
- 10. system. specialized system in which a muscular, pumping heart moves the luid medium called either hemolymph or blood in a specific direction determined by the presence of unidirectional blood vessels.
- 11. The coelomic fluid, hemolymph, or blood of most animals contains circulating cells called blood cells or?
- 12. the most numerous of the white blood cells
- 13. cavity. This cavity supplies nutrients for all body cells.
- 14. are associated with and influenced by the thymus gland