Phagocytes are cells that play a role in immune system function, surrounding pathogens and breaking them down by absorbing them. There are various types of phagocytes, the most common of which are called neutrophils. Their main function is to attack and combat bacteria. Macrophages are involved in patrolling for dangerous pathogens, but they also help remove dead or dying cells. Mast cells are involved in defending against pathogens and promote wound healing.

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