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        | What is characterized by heat, swelling, redness, and pain? |  | Definition 
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        | What is dependent on the body's ability to identify a certain patogen |  | Definition 
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        | What is the home of the immune system? What is also known as a large lymph node. |  | Definition 
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        | What are large lymph nodes in the throat that are like armed guards? |  | Definition 
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        | What is a lympaathic vessel that runs through the middle of the throax, and takes the lymph that drains from everywhere else in the body? |  | Definition 
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