A great number of health problems, and consequently the medical treatments for them, involve how blood flows through the body. Heart attacks are caused by restricted blood flow to the heart muscle. Many symptoms of diabetes ...
Dec 1, 2023
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When women with diabetes become pregnant, they face not only the typical challenges of pregnancy and impending parenthood, but also a scary statistic: they're five times more likely to have a baby with a congenital heart ...
Nov 30, 2023
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In a breakthrough in pediatric cardiac science, Canadian researchers have successfully produced a bio-ink that could someday be used to print functional, durable heart valves, offering hope for improving the prognosis of ...
Nov 30, 2023
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Mayo Clinic researchers studying the genetics of people who had recently developed dilated cardiomyopathy, one of the most common causes of heart failure, have found a particular gene to target for developing future drug ...
Nov 30, 2023
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Optimal windows exist for action and perception during the 0.8 seconds of a heartbeat, according to research published in the open-access journal PLOS Biology. The sequence of contraction and relaxation is linked to changes ...
Nov 28, 2023
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Cardiologists and radiation oncologists at Washington University School of Medicine in St. Louis pioneered the use of radiation therapy—a strategy typically used against cancer—to treat patients with a life-threatening ...
Nov 28, 2023
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Cardiometabolic disease (CMD) is an umbrella term that includes conditions such as obesity, diabetes, high cholesterol, and hypertension. Unfortunately, many adults in the United States have CMDs and the rates are on the ...
Nov 20, 2023
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Unlike humans, zebrafish can completely regenerate their hearts after injury. They owe this ability to the interaction between their nervous and immune systems, as researchers led by Suphansa Sawamiphak from the Max Delbrück ...
Nov 17, 2023
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Imaging techniques such as computed tomography (CT) or positron emission tomography (PET) are indispensable today for the diagnosis and localization of many diseases. A newly developed procedure now enables PET to be used ...
Nov 17, 2023
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Short sleep lengths, daytime napping and even long sleep lengths have been linked to an increased risk of elevated blood pressure and cardiovascular disease, a new study out of the Baker Heart and Diabetes Institute has found.
Nov 14, 2023
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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.
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