Cells of the Immune System

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Across 1. Common name for neutrophil polymorphonuclear leucocytes 3. They attach via C3b receptors and also release various substances from their eosinophilic granules. These contents are capable of damaging the parasite membrane 6. System that responds to attacks from outside the body 7. Binds the Fc portion of antibody molecules, chiefly IgG 9. Major Basic Protein (abbr.) 10. Process that involves ingestion and digestion of the following: microorganisms, insoluble particles, damaged or dead host cells, cell debris, and activated clotting factors 12. This is the movement of cells up a gradient of chemotactic factors 14. Non-phagocytic cells which, when activated, release numerous compounds from the basophilic granules within their cytoplasm. They play a major role in allergic responses 15. These types of lymphocytes undergo a process of maturation in the thymus gland and responds to antigens

Down 2. The coating of the organisms by molecules that speed up phagocytosis 4. Oftentimes monocytes are referred to as tissue _________ 5. There are two broad sub-groups of this type of cell, TCells and BCells 8. Lymphocytes, macrophages, and dendritic cells are derived from here 9. Within certain organs they have special names (in liver they are known as Kupfer cells, in brain as microglia, in kidney as mesangial cells, and in bone as osteoclasts) 11. These types of lymphocytes give rise to plasma cells which secrete immunoglobulins (antibodies) 13. ___ blood cells help carry oxygen in the bloodstream

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