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.

Learn How the Heart Works. Your heart is an amazing organ. It continuously pumps oxygen and nutrient-rich blood throughout your body to sustain life. This fist-sized powerhouse beats (expands and ...

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 ...

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 ...

When a doctor listens to the heart of a person with a heart murmur, they may hear a whooshing, swishing, humming, or rasping sound. This is due to rapid, turbulent blood flow through the heart ...

Specifically, the researchers found that neurons below the skull send signals from the heart to the brain that trigger a drop in heart rate, blood pressure and breathing rate. That, in turn, may ...