Ace the EMT Medical Lingo 2026 Challenge – Speak Like a Pro!

Inflammation is the body's immediate protective response to tissue injury or infection. When cells release chemical mediators, nearby blood vessels dilate and become more permeable, bringing immune cells to the site. This increased blood flow causes redness and warmth of the skin, and the body may respond with a mild fever as part of the systemic reaction to fight pathogens. So, the description of a protective immune response that can include a mild fever and reddening of the skin fits inflammation. Immunity refers to the overall ability to resist disease, infection means a pathogen is present, and allergies are an overreaction of the immune system to harmless substances.