Which white blood cell removes invading microorganisms by surrounding and engulfing them?

1. When microorganisms invade the human body, a type of white blood cell called a neutrophil removes the invaders by phagocytosis. 2. The neutrophil surrounds and engulfs the microorganism, which is then destroyed inside it. 3. T-helper cells are the lymphocyte subtype HIV infects, and they are not named as the engulfing cell here. 4. Red blood cells carry no such role, and osmoreceptors are brain cells that monitor blood solute levels. _Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 5 "Structure and Function of Plasma Membranes", section 5.4 Bulk Transport_