Question

Describe any two types of granulocytes (WBC) w.r.t. their structure and function.

Answer 1

1. WBCs with granular cytoplasm and lobulated nuclei are known as granulocytes.
2. Granulocytes are of three types:
   1. Neutrophils
   2. Basophils
   3. Eosinophils depending upon staining property of the granules

a. Neutrophils:

1. Granules are very minute and numerous, dyed with a neutral pigment.
2. 55 to 70% of total WBCs.
3. Nucleus is 2 to 5 Lobed.
4. Diameter is between 9 to 15 micrometer
5. Able to perform amoeboid movements.
6. Show Phagocytic action - destroy pathogen by phagocytosis.

c. Eosinophils - (Acidophils):

1. The granules get stained with acidic stains.
2. 1-3% ofall WBCs
3. Nucleus is bilobed.
4. The granules contain enzymes and proteins.
5. Eosinophils are involved in phagocytosis, cell killing and detoxification.