Answer: Circulatory system carries white blood cells to infected area.
Step-by-step explanation:
White blood cells are also referred to as the immune cells as they help in the immune process. White blood cells also fight infections.
White blood cells make their way to the infected part of body through the blood vessel walls.
There are various types of white blood cells, namely lymphocytes, monocytes, eosinopohils, basophils and neutrophils.
White blood cells have other functions also like protecting the body from any foreign materials entering blood stream. They also provide protection against mutated cells.
Neutruphils help the body to fight against infection and heal damaged area. They are the most common type of white blood cells.