vascular system

The vascular system, also called the circulatory system, consists of a network of blood vessels that transport blood throughout the body. Its main components are arteries, which carry oxygen-rich blood from the heart to tissues; veins, which return oxygen-poor blood back to the heart; and capillaries, tiny vessels where nutrients and oxygen are exchanged with body cells. This system helps deliver essential substances, remove waste products, and maintain overall health. It plays a vital role in sustaining life by ensuring that every part of the body receives the blood flow needed for proper function.