The cardiovascular system, also known as the circulatory system, is responsible for transporting blood and nutrients throughout the body. The 5 main parts of the cardiovascular system are:
Heart: The heart is the main organ of the cardiovascular system. It is a muscular pump that contracts and relaxes to circulate blood throughout the body.
Blood vessels: Blood vessels are tubes that carry blood throughout the body. There are three types of blood vessels: arteries, veins, and capillaries.
Arteries: Arteries carry oxygen-rich blood away from the heart to the rest of the body.
Veins: Veins carry oxygen-poor blood back to the heart.
Capillaries: Capillaries are the smallest blood vessels in the body. They connect arteries to veins and allow for the exchange of nutrients and waste products between the blood and body tissues.
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