This heart anatomy diagram shows that blood flows from the right atrium into the right ventricle and out to the lungs (via the pulmonary artery) where it gets oxygen.

Map of the Human Heart Let's get straight to the heart of the matter—the heart's job is to move blood. Day and night, the muscles of your heart contract and relax to pump blood throughout your body.

The heart is a complex organ that pumps blood throughout the body. It sits in the chest, slightly left of center, behind the breastbone, and between the lungs. A heart that is not healthy does not ...

The four valves of the heart prevent blood from flowing in the wrong direction, and open or close each time the heart beats. Learn more about them, here.

The system of blood vessels in the human body measure about 60,000 miles (96,560 kilometers). Arteries carry oxygen-rich blood from the heart through the body.

This study revealed that heart muscle cells using 3-OHB as an energy source drive better blood flow, a process known as ...

Over time, these things make it harder for blood to flow through your vessels. That forces your heart to work harder than usual. After a while, your ticker can't keep up.

Heart attack (blocked blood flow to the heart that causes heart muscle to die) Pulmonary embolism (blocked blood flow to the lungs that causes lung tissue to die which can cause shortness of breath or ...

Advanced mechanical heart valve offers smoother blood flow. Your friend's email. Your email. I would like to subscribe to Science X Newsletter. Learn more. Your name. Note.

Heart valves made in minutes control blood flow immediately after being implanted into sheep. ScienceDaily . Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2023 / 06 / 230607123521.htm ...

The research highlights how a ketone body called β-hydroxybutyrate (3-OHB)—a molecule produced by the liver when breaking down fat—can enhance blood flow to the heart. The paper is published ...