7th Grade: Immune System
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| these cells are the first ones to fight invaders |
white blood cells |
| act as little flags so the invaders can be quickly andeasily destroyed |
antibodies |
| this is where T cells and B cells are created and trained |
thymus |
| these cells create antibodies |
B cells |
| Send out a chemical that lets the other cells know whatvirus or bacteria has invaded the body |
T cells |
| After pus forms, these arrive to destroy the invaders |
macrophages |
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