Question

How does the immune system work together with the circulatory system to function properly?

A.
The infection site receives oxygen-depleted blood from the circulatory system's arteries, so the immune system works harder.

B.
The white blood cells of the immune system fight and destroy pathogens.

C.
Pathogens released by immune cells cause increased blood flow to the infection site, which brings other pathogens to the area more quickly.

D.
Red blood cells move through the body (to parts where they are needed) in the blood vessels of the circulatory system to fight infection.

Answer 1

I believe the correct answer from the choices listed above is option B. The immune system work together with the circulatory system to function properly by the white blood cells of the immune system fight and destroy pathogens which are found in the body. They pass through the circulatory system of the body.