Which of the following correctly lists the major types of granulocytic leukocytes in order of their abundance in peripheral blood?

• A. Eosinophils, basophils, neutrophils
• B. Eosinophils, neutrophils, basophils
• C. Basophils, neutrophils, eosinophils
• D. Neutrophils, eosinophils, basophils

Answer: (D)

Verified step by step guidance

1. Step 1: Understand that granulocytic leukocytes, also known as granulocytes, are a category of white blood cells characterized by the presence of granules in their cytoplasm. The major types include neutrophils, eosinophils, and basophils.
2. Step 2: Recall that the relative abundance of these granulocytes in peripheral blood is an important physiological parameter and is typically measured as a percentage of total white blood cells.
3. Step 3: Know the typical order of abundance in peripheral blood: neutrophils are the most abundant granulocytes, followed by eosinophils, and then basophils, which are the least abundant.
4. Step 4: Compare the given options to this known order. The correct sequence should start with neutrophils, then eosinophils, and finally basophils.
5. Step 5: Conclude that the correct listing of granulocytic leukocytes by abundance in peripheral blood is: neutrophils, eosinophils, basophils.