News tagged with heart

Related topics: heart attack · heart failure · heart disease · heart muscle · patients

What you need to know about cholesterol

(HealthDay)—Cholesterol plays a vital role in your health, so it's important to understand the different types of cholesterol and how to influence their levels, a heart specialist says.

Mar 28, 2017
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Researchers turn urine into research tools

One of the biggest challenges in studying Down syndrome is finding the right research model. Animals and established cell lines are limited in their ability to mimic human disease, and results don't always translate to patient ...

Mar 28, 2017
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Heart

The heart is a muscular organ in all vertebrates responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in annelids, mollusks, and arthropods. The term cardiac (as in cardiology) means "related to the heart" and comes from the Greek καρδιά, kardia, for "heart."

The heart of a vertebrate is composed of cardiac muscle, an involuntary striated muscle tissue which is found only within this organ. The average human heart, beating at 72 beats per minute, will beat approximately 2.5 billion times during a lifetime (about 66 years). It weighs on average 250 g to 300 g in females and 300 g to 350 g in males.

This text uses material from Wikipedia, licensed under CC BY-SA

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