Which of the following are phagocytic cells?

Correct answer: (a) Neutrophils, macrophages

Explanation

Phagocytes are white blood cells that engulf and digest bacteria, dead cells and debris. The main ones are:

• neutrophils, the most numerous white cells and the first to reach a site of infection;
• macrophages, which develop from monocytes, live in the tissues and also present antigens to lymphocytes.

Mast cells release histamine in allergy and inflammation but are not mainly phagocytic, and antibodies are proteins, not cells.