Case 1 Megan, an active 3-year-old girl, was chasing her puppy when she slipped on loose gravel. She tried to break her fall and as a result she scraped both her hands. 1. What level of defense was affected by her fall? 2. How does the fall impact the immune response that will be activated and why does this happen? 3. What type of cells would respond to this type of injury?
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