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 …

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.

A Journey To The Center Of The Earth: What's Hiding 4,000 Miles Down? Path of Blood Flow through the Heart | Step by step through every chamber, valve, and major vessel

Oct 21, 2025 · 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 …

Mar 24, 2022 · Inside your heart, valves keep blood flowing in the right direction. Your heart’s electrical system controls the rate and rhythm of your heartbeat. A healthy heart supplies your …

Aug 22, 2024 · Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective blood circulation throughout the body to sustain life.

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 …

Your heart needs to beat regularly to help pump blood around your body. Your heart has an electrical conduction system which sends signals throughout the upper chambers (atria) and …

Oct 4, 2024 · Blood is carried through the body in blood vessels called arteries and veins. The process of moving blood through the body is called circulation. Together, the heart and …