Immunology

5. - The term for a molecule like C3bBb that efficiently cuts other C3 molecules in the complement system.
7. - The process of coating invaders with complement fragments to facilitate their engulfment by phagocytes.
12. Hormone-like messengers facilitating communication between immune system cells.
13. - The process in which macrophages engulf and destroy invaders.
16. The system that helps drain excess fluid from tissues and carries immune cells throughout the body.
17. - Carbohydrate molecule found on the surface of common pathogens, triggering activation of the lectin pathway.
19. - This cytokine is mainly produced by helper T cells and natural killer cells to signal an immune response.
20. - A mixture of dead neutrophils and tissue debris
21. - The third level of defense in the immune system that can adapt to protect against various invaders.
22. - Signaling molecules that encourage neutrophils to exit the blood and migrate to sites of infection

1. Describes a group of identical immune cells produced during an immune response.
2. - Blood cells that can mature into macrophages and are important for immune defense.
3. - Immune system's foot soldier responsible for killing and phagocytosis
4. The body's response involving swelling and increased blood flow to fight invaders.
6. - Proteins produced by B cells to defend against specific invaders.
8. - A substance used to stimulate immunity and protect against specific diseases.
9. - These organelles become more abundant in hyperactivated macrophages, aiding in destroying invaders.
10. - A substance that causes the production of antibodies.
11. Pertaining to a certain type of invader, such as the common cold or flu.
14. The condition where the immune system mistakenly attacks the body's own cells and tissues.
15. - The first line of defense in the immune system that is naturally present in all animals.
17. Large immune cells responsible for devouring invaders and acting as garbage collectors.
18. : Type of immune response involving T cells and direct attack on infected cells.
23. Reactive complement fragment that binds to chemical groups on invaders' surfaces.