Here's a breakdown:

* Phagocytes are cells that engulf and destroy foreign particles, pathogens, and cellular debris.

* Macrophages are large, long-lived phagocytes that reside in tissues. They are responsible for engulfing and destroying bacteria, viruses, and other pathogens, as well as removing cellular debris.

* Neutrophils are a type of white blood cell that are the most abundant type of phagocyte in the blood. They are short-lived and migrate to sites of infection where they engulf and destroy bacteria and other pathogens.

Localization and Wandering:

* Macrophages are often localized in tissues. They can be found in various organs, such as the lungs, liver, spleen, and lymph nodes. However, they can also migrate to sites of inflammation or infection.

* Neutrophils are circulating in the blood and can quickly migrate to sites of infection, where they are needed to fight off invading pathogens.

So, to summarize:

* Phagocytes, specifically macrophages and neutrophils, are highly phagocytic cells that play a vital role in the immune system.

* They can be localized in specific tissues (like macrophages) or wander throughout the body (like neutrophils) to reach sites of infection.