Lesson 12.3: Immunity to Infection | Crossword


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


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

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