GENERAL HISTOLOGY

Detailed explanation-1: -Professional phagocytes [2] include monocytes, macrophages, neutrophils, dendritic cells, osteoclasts, and eosinophils. These cells are in charge of eliminating microorganisms and of presenting them to cells of the adaptive immune system.

Detailed explanation-2: -Monocytes, macrophages, and neutrophils are phagocytes. A phagocyte is a type of white blood cell.

Detailed explanation-3: -Macrophages. Macrophage is a type of white blood cell which is a phagocyte. They are scavengers which constantly move around to remove dead cells and foreign bodies such as pathogenic microbes; this occurs by the production of compounds such as nitric oxide.

Detailed explanation-4: -Macrophages are effector cells of the innate immune system that phagocytose bacteria and secrete both pro-inflammatory and antimicrobial mediators. In addition, macrophages play an important role in eliminating diseased and damaged cells through their programmed cell death.