Lesson 12.3: Immunity to Infection | Crossword
Across
2. | a cell that produces antibodies |
4. | a barrier lining the body cavities and passages that open to the outside world |
6. | a cell that coordinates the body’s immune response and attacks cells that have been infected by a virus |
7. | a molecule that attaches to and marks a pathogen as foreign, signaling white blood cells to destroy it |
8. | a rise in the body’s temperature, which stimulates white blood cells and blocks pathogen reproduction |
Down
1. | increased blood flow to an injured or diseased area of the body, causing redness, hurt, swelling, and pain |
3. | a white blood cell that engulfs and destroys microorganisms |
4. | a thick, watery substance that shields the body from pathogens |
5. | small, hair-like appendages that move mucus and fluids within the body |