The circulatory system is a vast network of organs and vessels that is responsible for the flow of blood, nutrients, hormones, oxygen and other gases to and from cells.
Circulatory system contains of:
Heart, Lung, Blood Vessel (Arteries & Veins)
Responsible for: Transportations
1- Deliver Oxygen & get out Co2
2- Deliver nutrients & get out waste product
3- Deliver immune cells to infection location "Inflammatory cells, RBC's & Lymphocytes" to deal with invaded organisms by kill it.
4- Deliver Secreted Hormones to target cells
