The figure shows a human blood cell. Identify it and give its characteristics.
Correct answer: A. Basophil - Secretes serotonin, inflammatory response
- A. Basophil - Secretes serotonin, inflammatory response
- B. B-lymphocyte - Forms about 20% of blood cells involved in immune response
- C. Neutrophil - Most abundant blood cells, phagocytic
- D. Monocyte - The life span of 3 days, produces antibodies
Explanation
When observed under a microscope, basophils are a type of white blood cell that appear as large, irregularly shaped cells with dark-staining granules in their cytoplasm. These granules contain various substances, including histamine and other inflammatory mediators.The function of basophils is primarily related to their role in the immune response and inflammation. When the body encounters an allergen or an invading pathogen, basophils are activated and release their granules. Histamine, in particular, plays a significant role in allergic reactions. It causes blood vessels to dilate, increases vascular permeability, and promotes the recruitment of other immune cells to the site of inflammation.
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