Phagocytes are a type of white blood cell that move by amoeboid action. They send out pseudopodia which allows them to surround invading microbes and engulf them. Phagocytes release digestive enzymes which break down the trapped microbes before they can do any harm. This process is called phagocytosis.

What kind of cell fights off invading microbes?

Immune system

White blood cells play a key role. Some rush to attack any harmful microbes that invade the body. Other white blood cells become specialists, adapted to fight particular pathogens. All of them work to keep the body as healthy as possible.

What defends body against invading microbes?

White blood cells are the key players in your immune system. They are made in your bone marrow and are part of the lymphatic system. White blood cells move through blood and tissue throughout your body, looking for foreign invaders (microbes) such as bacteria, viruses, parasites and fungi.