This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Phagocytes are cells which are crucial for our immunity, in fighting infections. They ingest bacteria, dead cells or other things that can be harmful. There are two types of phagocytes: professional and non-professional. Professional are more effective, many types of blood cells are among them. 

I hope it was helpful :)