Jan 8, 2025 · Learn about the heart's anatomy, how it functions, blood flow through the heart and lungs, its location, artery appearance, and how it beats.

May 14, 2018 · How the Healthy Heart Works Video: The Basics of Heart Circulation The normal heart is a strong, hard-working pump made of muscle tissue. It's about the size of a person's fist. The heart …

Jan 26, 2024 · Your heart contains four muscular sections (chambers) that briefly hold blood before moving it. Electrical impulses make your heart beat, moving blood through these chambers.

Dec 14, 2025 · Arteries carry blood away from the heart and veins carry blood to the heart. The flow of blood through the vessels and chambers of the heart is controlled by valves.

Jan 21, 2026 · Heart, organ that serves as a pump to circulate the blood. It may be as simple as a straight tube, as in spiders and annelid worms, or as complex as the four-chambered double pump …

Each day, your heart beats around 100,000 times. This continuously pumps about 5 litres (8 pints) of blood around your body through a network of blood vessels (called arteries and veins) in your …

Mar 24, 2022 · Blood flows from the body and lungs to the atria and from the atria to the ventricles. The ventricles pump blood out of the heart to the lungs and other parts of the body. An internal wall of …

May 19, 2020 · Interior vena cave The heart pumps blood to the bra. n, lungs, and body. A heart that works well is needed for good health . nd to sustain life. To understand heart problems better, it may …

Learn about the different parts of the heart and watch our video about how a healthy heart works. Your heart is the pump which powers your body. It supplies blood carrying oxygen and nutrients to every …

An electrical system regulates your heart and uses electrical signals to contract the heart's walls. When the walls contract, blood is pumped into your circulatory system. A system of inlet and outlet valves …