Related topics: heart failure , heart attack , heart muscle , heart disease , stem cells
Heart
hideThe 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.
For more information about Heart, read the full article at
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News tagged with heart
Pickin' Up Good Vibrations to Produce Green Electricity
Nov 30, 2009 |
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(PhysOrg.com) -- Vibrations from the environments we live and work in could be much more widely harnessed as a clean source of electricity, due to cutting-edge UK research.
Want to live well? Harvard experts offer pragmatic pointers on getting healthy and staying there
Dec 17, 2009 |
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You are what you eat. You're also how you feel, how you exercise, how you sleep, how you handle money, how you relate to people, and what you value.
Study Finds Eating Fruits and Vegetables Lowers Risks of Heart Disease
Nov 25, 2009 |
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(PhysOrg.com) -- A new study of adults aged 70 or older found that increased servings of fruits and vegetables were significantly associated with a decrease of cognitive impairment, and that those eating three or more servings ...
Why we outlive our ape ancestors
Dec 02, 2009 |
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In spite of their genetic similarity to humans, chimpanzees and great apes have maximum lifespans that rarely exceed 50 years. The difference, explains USC Davis School of Gerontology Professor Caleb Finch, is that as humans ...
BMI and waist circumference
Dec 08, 2009 |
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Body mass index (BMI) and waist circumference are well known risk factors for cardiovascular diseases (CVD), but a new study reported in the European Journal of Cardiovascular Prevention and Rehabilitation today now conclu ...
Study suggests adult stem cells may help repair hearts damaged by heart attack
Dec 02, 2009 |
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Adult stem cells may help repair heart tissue damaged by heart attack according to the findings of a new study to be published in the December 8 issue of the Journal of the American College of Cardiology. Results from t ...
The tall and short of diseases
Nov 25, 2009 |
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(PhysOrg.com) -- Research shows that being taller means a fatter pay check and an increased risk of some cancers.
Popular diabetes drugs linked to increased risk of heart failure and death
Medicine & Health / Medications
Dec 04, 2009 |
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Sulphonylureas, a type of drug widely used to treat type 2 diabetes, carries a greater risk of heart failure and death compared with metformin, another popular antidiabetes drug.
Most eligible patients miss out on cardiac resynchronization therapy for heart failure
Dec 11, 2009 |
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Most patients with heart failure likely to benefit from a pacemaker including the capacity for cardiac resynchronization therapy (CRT) do not receive such an implantable device, reports a national study in the December 2009 ...
Good cholesterol not as protective in people with type 2 diabetes
Dec 21, 2009 |
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High-density lipoprotein (HDL), known as "good" cholesterol, isn’t as protective for people with type 2 diabetes, according to research reported in Circulation: Journal of the American Heart Association.
Researchers find new patterns in H1N1 deaths
5 hours ago |
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Brazilian researchers have performed the first-ever autopsy study to examine the precise causes of death in victims of the H1N1 swine flu.
Ginkgo biloba doesn’t prevent cardiovascular events but may have potential peripheral artery disease benefits
Nov 26, 2009 |
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(PhysOrg.com) -- Ginkgo biloba didn’t prevent cardiovascular death or major events such as heart attack and stroke in people age 75 and older, but the herb may affect peripheral vascular disease, according to research reported ...
Breastfeeding protects women from metabolic syndrome, a diabetes and heart disease predictor
Dec 03, 2009 |
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Breastfeeding a child may lower a woman’s risk of developing Metabolic Syndrome, a condition linked to heart disease and diabetes in women, according to a Kaiser Permanente study that was published today online ahead of print ...
High-fat low-carb diets could mean significant heart risk
Dec 09, 2009 |
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New scientific research has shown that low-carbohydrate high-fat diets, made popular by the likes of the Atkins diet, do not achieve more weight loss than low-fat high-carbohydrate diets. Worryingly, the research, lead by ...
Heart cells on lab chip display 'nanosense' that guides behavior
Nanotechnology / Bio & Medicine
Dec 15, 2009 |
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Johns Hopkins biomedical engineers, working with colleagues in Korea, have produced a laboratory chip with nanoscopic grooves and ridges capable of growing cardiac tissue that more closely resembles natural ...
