Red indicates oxygenated blood carried in arteries. Blue indicates deoxygenated blood carried in veins. Capillaries join the arteries and veins. In vertebrates, the circulatory system is a system of organs …

Aug 29, 2024 · Your circulatory system, or cardiovascular system, supplies oxygen and nutrients to your whole body and removes waste through your blood. Your heart pumps blood that flows through your …

Dec 8, 2025 · The circulatory system is the network of tissues, blood vessels, lymph vessels, and supporting components that transports nutrients, respiratory gases, and metabolic products …

Dec 23, 2024 · The human circulatory system or cardiovascular system is a network responsible for transporting blood, oxygen, nutrients, hormones, and waste products throughout the body. It consists …

Feb 17, 2020 · Learn more about how the circulatory system works, what it consists of, and the diseases that can affect your heart and blood vessels.

Sep 12, 2023 · The circulatory or cardiovascular system is composed of the heart, blood vessels and the blood. It delivers essential substances to the cells of the body.

Apr 13, 2025 · At the heart of the circulatory system—literally and metaphorically—is the heart itself. This muscular organ, about the size of your fist, is a tireless engine that beats around 100,000 times …

Oct 19, 2025 · The cardiovascular system, also known as the circulatory system, includes the heart and blood vessels. It plays an important role in transporting blood to organs and tissues throughout the …

There are many parts of the circulatory system which all work together to keep the body’s cells functioning. The main roles of the blood circulatory system (cardiovascular system) are to deliver …

Simplified diagram of the human Circulatory system in anterior view. (Public Domain; LadyofHats) A liquid, blood, to transport nutrients, wastes, oxygen and carbon dioxide, and hormones. The heart is …