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 …

Sep 4, 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 …

Oct 27, 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.

Apr 13, 2025 · The circulatory system is a masterpiece of biological engineering—a living infrastructure that connects every cell, every organ, and every function within your body.

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.

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 …

American Heart Association

May 22, 2025 · Common conditions that can affect the cardiovascular system include coronary artery disease, heart attack, high blood pressure, and stroke. This article explores the cardiovascular …