Circulatory System Organs: A Comprehensive Guide to Heart, Arteries & Veins

Organs of the circulatory system

| Organ | Job |

|---|---|

| Heart | The heart is a muscular organ that pumps blood around the body. It is divided into four chambers: the right atrium, the right ventricle, the left atrium, and the left ventricle. |

| Arteries | Arteries are blood vessels that carry blood away from the heart to the body's tissues. |

| Veins | Veins are blood vessels that carry blood back to the heart from the body's tissues. |

| Capillaries | Capillaries are tiny blood vessels that connect arteries to veins. They are where the exchange of oxygen and carbon dioxide takes place between the blood and the body's tissues. |

| Blood | Blood is the liquid that flows through the circulatory system. It carries oxygen, nutrients, hormones, and other substances to the body's tissues, and it removes waste products from the tissues. |

| Lymph | Lymph is a clear fluid that circulates throughout the body, collecting waste products from the tissues and returning them to the bloodstream. |