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.

T he heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

The circulatory system includes the heart, blood vessels and blood, and is vital for fighting diseases and maintaining homeostasis (proper temperature and pH balance). The system's main function ...

Keywords heart anatomy, fluorography, venous catheterization, blood flow, cardiac cycle, right atrium, left atrium, coronary arteries, selective opacification, physiological data Email us at ...

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 ...

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.