Across
- 3. a substance that cause an allergic reaction
- 4. a reaction when body reacts to something that's normally harmless like pollen, dust or animal fur
- 6. release histamine to initiate inflammation
- 7. most abundant leukocyte; phagocytic; lives 1-2 days
- 9. a process white blood cells engulf the entire pathogens
- 10. the precursor of macrophages;
- 11. most of these cells reside in the lymphoid tissues
Down
- 1. a group of responses to a tissue irritant marked by signs of redness, heat, swelling, and pain
- 2. substances that trigger immune responses
- 5. a type of protein molecule with immune function that is made exclusively by B cells
- 8. associated with allergic reactions and parasitic infestations