News tagged with heart

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

Tackling chronic diseases in poor countries

The health problems that have long plagued people in the West—heart disease, diabetes, cancer—are on the rise globally. Yale researchers examine the growing problem of chronic disease in poor countries in the September ...

Sep 09, 2015
popularity13 comments 0


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

Subscribe to rss feed