The function common to neutrophilis, monocyte & macrophages is-
The professional phagocytes include many types of white blood cells (such as neutrophils, monocytes, macrophages, mast cells, and dendritic cells). Reff: Ananthanarayanan & Panikers textbook of microbiology 9th edition pg: 138
Immune response
Phagocytosis
Liberation of histamine
Destruction of old crythrocytes
Immunology