What are the main systems in cardiovascular system?

The cardiovascular system consists of the heart, blood vessels, and blood. The heart is a muscular organ that pumps blood throughout the body. Blood vessels are channels that carry blood throughout the body. Blood is a fluid that contains oxygen, nutrients, and waste products.

The main systems in cardiovascular system are:

- arterial system (arteries)

- venous system (veins)

- heart

- lymphatic system (lymphatic vessels and lymph nodes)

The arterial system carries oxygenated blood from the heart to the rest of the body. The venous system carries deoxygenated blood back to the heart. The heart pumps blood through the arteries and veins. The lymphatic system helps to collect and return fluid from the body to the bloodstream.