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 ...

When blood returns to the heart, it follows a complicated pathway. If you were in the bloodstream, ... Blood flows through the left atrium into the left ventricle.

T he heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is ...

The pathway appears to carry signals from the heart's lower pumping chambers to an area of the brainstem that controls heart rate, blood pressure and breathing, says Vineet Augustine, a ...

Arteries carry blood from the heart, unlike veins, which carry blood to the heart. According to the Cleveland Clinic, if you laid out all of the blood vessels in the circulatory system , they ...

New computer models that track the motions of blood flow in the heart may reduce the risk of stroke, according to researchers at Johns Hopkins Medicine. Using specialized CT scans, a team of ...

Oxygen-rich blood generally flows from the heart to the brain, but a new technology aimed at preventing strokes temporarily reverses that path.Surgeons at Sharp Grossmont Hospital in La Mesa are th… ...

Using specialized CT scans of a healthy heart and one with heart disease, a team of cardiologists and biomedical engineers say they've created computer models of the "shape" of blood flow through ...

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 ...

When blood returns to the heart, it follows a complicated pathway. If you were in the bloodstream, you would follow the steps below one by one. Oxygen-poor blood (shown in blue) flows from the ...