News tagged with human heart
'ROCK' off: Study establishes molecular link between genetic defect and heart malformation
UNC researchers have discovered how the genetic defect underlying one of the most common congenital heart diseases keeps the critical organ from developing properly. According to the new research, mutations ...
Feb 06, 2012 |
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Scientists use silk from the tasar silkworm as a scaffold for heart tissue
(PhysOrg.com) -- Damaged human heart muscle cannot be regenerated. Scar tissue grows in place of the damaged muscle cells. Scientists from the Max Planck Institute for Heart and Lung Research in Bad Nauheim ...
Jan 30, 2012 |
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The microbiome and disease: Gut bacteria influence the severity of heart attacks in rats
New research published online in the FASEB Journal (http://www.fasebj.org) suggests that the types and levels of bacteria in the intestines may be used to predict a person's likelihood of having a heart attack, and that manipulating ...
Jan 13, 2012 |
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Institute presses for greater use of gene sequencing in medicine
Almost a year after researchers in Wisconsin published a groundbreaking paper describing their use of genetic sequencing to diagnose and treat a 4-year-old boy, a national health agency is shifting its focus to put $416 ...
Dec 07, 2011 |
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Environment and diet leave their prints on the heart
A University of Cambridge study, which set out to investigate DNA methylation in the human heart and the 'missing link' between our lifestyle and our health, has now mapped the link in detail across the entire human genome.
Nov 29, 2011 |
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Heart experts share some surprising findings
A shot that could lower cholesterol, a connection between blood type and stroke, and how income affects heart health were among more than 4,000 papers presented this week at the American Heart Association's 84th annual scientific ...
Medicine & Health / Cardiology
Nov 21, 2011 |
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Scientists discover new blood pressure genes
(Medical Xpress) -- New genes affecting high blood pressure, a condition that causes more than 7 million deaths worldwide each year, have been uncovered by scientists at Queen Mary, University of London.
Nov 18, 2011 |
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Hormone that controls iron levels may be target for atherosclerosis treatment
Researchers at Emory University School of Medicine have identified hepcidin, a hormone that regulates iron levels in the body, as a potential target for treating atherosclerosis.
Medicine & Health / Cardiology
Nov 16, 2011 |
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Research indicates obesity and diabetes risk is determined in the womb
New research from Warwick Medical School indicates some of your risk of developing obesity, diabetes and heart conditions is pre-determined whilst in the womb and by improving the pregnant mother’s diet and vitamins ...
Nov 10, 2011 |
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Biologists use flies, mice to study Down syndrome
A novel study involving fruit flies and mice has allowed biologists to identify two critical genes responsible for congenital heart defects in individuals with Down syndrome, a major cause of infant mortality ...
Nov 04, 2011 |
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Researchers lead creation of heart cells
Heart disease is the leading cause of death in Australia and now, in a major boost for drug development, scientists will be able to mimic its effects in a petri dish after identifying a new, reliable way of ...
Oct 25, 2011 |
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HPV linked to cardiovascular disease in women
Women with cancer-causing strains of human papillomavirus (HPV) may be at increased risk for cardiovascular disease (CVD) and stroke even when no conventional risk factors for CVD are present.
Medicine & Health / Cardiology
Oct 24, 2011 |
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Bath salts emerging as new recreational drugs
The use of bath salts as recreational drugs has greatly escalated in recent years. Researchers from the University of Oklahoma Health Sciences Center in Oklahoma City, Oklahoma describe an incident of a man experiencing significant ...
Oct 24, 2011 |
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Exercise before and during early pregnancy increases two beneficial proteins for mothers-to-be
Although exercise is generally considered to be a good thing for people with high blood pressure, it has traditionally been considered too risky for women who are also pregnant. Some studies suggest that exercise has benefits ...
Oct 14, 2011 |
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Eating your greens can change the effect of your genes on heart disease, say researchers
A long-held mantra suggests that you can't change your family, the genes they pass on, or the effect of these genes. Now, an international team of scientists, led by researchers at McMaster and McGill universities, is attacking ...
Oct 11, 2011 |
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Human heart
The human heart provides a continuous blood circulation through the cardiac cycle and is one of the most vital organs in the human body. It is divided into four chambers: the two upper chambers are called the left and right atria and two lower chambers are called the right and left ventricles. Normally the right ventricle pumps the same blood amount into the lungs with each bit that the left ventricle pumps out. Physicians commonly refer to the right atrium and right ventricle together as the right heart and to the left atrium and ventricle as the left heart.
The electric energy that stimulates the heart occurs in the sinoatrial node, which produces a definite potential and then discharges, sending an impulse across the atria. The Purkinje fibers transmit the electric charge to the myocardium while the cells of the atrial walls transmit it from cell to cell, making the atrial syncytium.
The human heart and its disorders (cardiopathies) are studied primarily by cardiology.
For more information about Human heart, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
