Phagocytosis

Engulfment and destruction of pathogen.

Phagosome maturation
The phagosome fuses with early endosomes, late endosomes then the lysosome.

The phagolysosome is a degradative compartment containing potent antimicrobial factors in an acidic environment.

NADPH oxidase
This powerful complex is required to generate reactive oxygen and nitrogen species.

A respiratory burst is the rapid release of reactive oxygen species.