News tagged with heart

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

Rehospitalization in younger patients

Older adults often are readmitted after hospitalization for heart failure, pneumonia, and acute myocardial infarction, a significant issue that has caused Medicare to target hospitals with high 30-day readmission rates for ...

3 hours ago
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USC memory scientist Richard Thompson dies at 84

Richard F. Thompson, the University of Southern California neuroscientist whose experiments with rabbits led to breakthrough discoveries on how memories are physically stored in the brain, has died. He was 84.

Sep 29, 2014
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A new method for healing hearts

(Medical Xpress)—A University of Arizona surgeon is exploring how amniotic tissue, with its anti-inflammatory and anti-scarring properties, may help prevent complications after heart surgery.

Sep 29, 2014
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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.

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