What are the main organs in the circulatory system?

The heart is a muscular organ with four chambers. Located just behind and slightly left of the breastbone, it pumps blood through the network of arteries and veins called the cardiovas- cular system. The systemic circulation is a major portion of the circulatory system. read more

Your circulator system is a complex network of different organs and vessels that ensure proper flow of nutrients, blood, hormones and oxygen to and from cells. Your body cannot be able to maintain a healthy internal environment or fight diseases in the absence of your circulatory system. read more

Other organs from other systems that help the circulatory system carry out its functions are the brain and the lungs. The brain is from the nervous system and is the control center of the entire body. The brain sends messages to all of the parts of the body including the heart, which is the major organ in the circulatory system. read more