IMMUNOLOGY

Detailed explanation-1: -neutrophil: Neutrophil granulocytes are the most abundant type of white blood cells in mammals and form an essential part of the innate immune system. macrophage: A white blood cell that phagocytizes necrotic cell debris and foreign material, including viruses, bacteria, and tattoo ink.

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

Detailed explanation-3: -The process where these white blood cells surround, engulf, and destroy foreign substances is called phagocytosis, and the cells are collectively referred to as phagocytes. Phagocytes eventually die. Pus is formed from a collection of dead tissue, dead bacteria, and live and dead phagocytes.

Detailed explanation-4: -Macrophages and neutrophils (phagocytes) are the front-line defenders in your body’s immune system. They seek out, ingest, and destroy pathogens and other debris through a process called phagocytosis.

Detailed explanation-5: -Macrophages work as innate immune cells through phagocytosis and sterilization of foreign substances such as bacteria, and play a central role in defending the host from infection.