Which of the following correctly lists the steps of the inflammatory reaction in the proper order?

• A. Vasodilation and increased permeability, recognition of injury, release of chemical mediators, recruitment of immune cells, resolution of inflammation
• B. Release of chemical mediators, recognition of injury, recruitment of immune cells, vasodilation and increased permeability, resolution of inflammation
• C. Recruitment of immune cells, recognition of injury, vasodilation and increased permeability, release of chemical mediators, resolution of inflammation
• D. Recognition of injury, release of chemical mediators, vasodilation and increased permeability, recruitment of immune cells, resolution of inflammation

Answer: (D)

Verified step by step guidance

1. Step 1: Begin by understanding the inflammatory reaction, which is the body's response to injury or infection. It involves a series of coordinated steps to protect and heal the affected area.
2. Step 2: Recognize that the first step in the inflammatory reaction is the recognition of injury. This occurs when cells or tissues detect damage or the presence of pathogens, triggering the immune response.
3. Step 3: The second step is the release of chemical mediators, such as histamine, cytokines, and prostaglandins. These molecules signal and amplify the inflammatory response, preparing the area for further action.
4. Step 4: The third step involves vasodilation and increased permeability of blood vessels. This allows more blood flow to the injured area and enables immune cells and proteins to move into the tissue to address the damage.
5. Step 5: The fourth step is the recruitment of immune cells, such as neutrophils and macrophages, to the site of injury. These cells help eliminate pathogens and clear debris. Finally, the resolution of inflammation occurs, where the tissue begins to heal and return to its normal state.