, Introduction
The circulatory system, also called
the cardiovascular system or the vascular
system, is an organ system that permits blood to
circulate and transport nutrients (such as amino
acids and electrolytes), oxygen, carbon
dioxide, hormones, and blood cells to and from
the cells in the body to provide nourishment and
help in fighting diseases, stabilize
temperature and pH, and maintain homeostasis of
the body. The circulatory system includes
the lymphatic system, which circulates lymph.