News tagged with heart

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

Root of cardiac fibrosis defined

Northwestern Medicine scientists have identified a novel molecular mechanism that regulates scar formation in the heart, a common manifestation of aging and nearly every form of heart disease. The discovery was published ...

Jul 13, 2017
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Government funds dwindle for cardiac arrest research

National Institutes of Health (NIH) funding to conduct cardiac arrest research has dwindled in the last decade and is a fraction of what the government spends to study other leading causes of death, according to new research ...

Jul 12, 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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