Blood cells G11

2. cava Large vein bringing deoxygenated blood into the right atrium.
4. The most common type of leukocyte; highly effective against bacteria.
7. Shape of a monocyte’s nucleus.
8. Proteins released by B cells to neutralize pathogens.
10. Type of immunity provided by T and B lymphocytes.
13. The liquid portion of blood in which cells are suspended.
14. Largest leukocytes; horseshoe-shaped nucleus; become macrophages.
17. General term for white blood cells involved in body defenses.
21. Large cells in bone marrow that produce platelets.
22. Valve that allows blood to exit the left ventricle into the aorta.
23. Term for cells that engulf pathogens or debris.
24. Small particles in cytoplasm of some leukocytes, like neutrophils and eosinophils.

1. Phagocytic cells with red-orange granules; active in allergies and parasitic infections.
3. Flattened, biconcave red blood cells that transport oxygen.
5. Least common leukocyte; promotes inflammation with dense purple granules.
6. Platelets help maintain this by sealing wounds and preventing blood loss.
9. Cell fragments that aid in clotting and tissue repair.
11. Substance recognized as foreign, triggering immune response.
12. Jelly-like material in cells where granules may be found.
13. Term describing blood vessels or valves associated with the lungs.
15. marrow The tissue where blood cells are produced.
16. Spherical cells with a large nucleus; include B and T cells.
18. Shape of red blood cells that increases surface area for gas exchange.
19. Large artery that carries oxygen-rich blood from the left ventricle to the body.
20. Type of heart valve shaped like a half-moon.