Which leukocytes release histamine during the inflammatory response?

• A. Eosinophils
• B. Basophils
• C. Neutrophils
• D. Monocytes

Answer: (B)

Verified step by step guidance

1. Step 1: Begin by understanding the role of leukocytes (white blood cells) in the immune system. Leukocytes are responsible for defending the body against infections and foreign invaders, and they play a key role in the inflammatory response.
2. Step 2: Learn about histamine. Histamine is a chemical that is released during the inflammatory response to increase blood flow to the affected area and make blood vessels more permeable, allowing immune cells to reach the site of injury or infection.
3. Step 3: Review the specific functions of the leukocytes listed in the problem: Eosinophils, Basophils, Neutrophils, and Monocytes. Each type has a distinct role in the immune system. For example, eosinophils are involved in combating parasitic infections, neutrophils are the first responders to bacterial infections, and monocytes differentiate into macrophages to engulf pathogens.
4. Step 4: Focus on basophils. Basophils are a type of leukocyte that is specifically responsible for releasing histamine during the inflammatory response. This release helps to mediate allergic reactions and inflammation.
5. Step 5: Conclude by identifying basophils as the correct answer based on their unique role in releasing histamine, which distinguishes them from the other leukocytes listed in the problem.