Question

The promastigotes released by sandfly into human blood is phagocytosed by

• A. Mast cells
• B. RBC
• C. Macrophages
• D. All of the above

Answer 1

Answer: (C)

Macrophages

• The macrophage is the type of white blood cells which digest cellular debris or the microbes in the bloodstream which don't have the protein coating like the healthy surface of the other body cells.
• When the amastigotes enter the bloodstream via the bite of the sand fly they are attacked by macrophage present in the blood and are digested by the process of macrophage cytolysis.
• Whole RBC is not phagocytic cells so they are not involved in the attacking or destroying of the cells.
• Thus the answer Macrophage is the correct option.