News tagged with heart

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

Healing broken hearts

During each of her two pregnancies, Jennifer Solms Nelson studied the results of her ultrasound a bit more intensely than other expectant mothers. Whereas most might scan the grainy black-and-white images for ten fingers ...

Jul 22, 2016
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Female smokers face greatest risk for brain bleeds

Bleeding inside the lining of the brain (subarachnoid hemorrhage) is significantly more common among smokers, especially female smokers, than among people who do not smoke, according to new research in the American Heart ...

Jul 21, 2016
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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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