The respiratory system
circulatory .
circulatory .
circulatory .
circulatory .
Circulatory systems deliver food and oxygen to cells and remove carbon dioxide and metabolic wastes.
respiratory :)
circulatory .
circulatory .
circulatory .
circulatory .
respiratory :)
Oxygen and carbon dioxide are moved to and from body tissues via the circulatory system. These materials diffuse through the cell membrane, and then diffuse through the capillary wall into or out of the bloodstream.