Cardiology

Give the heart a ketone? It may be beneficial

There is growing evidence that ketone bodies may be beneficial to heart disease patients regardless of the method of delivery used to increase ketone delivery to the heart. A Journal of the American College of Cardiology ...

Diseases, Conditions, Syndromes

Research team identifies potential drug to treat SARS-CoV-2

A federally approved heart medication shows significant effectiveness in interfering with SARS-CoV-2 entry into the human cell host, according to a new study by a research team from Texas A&M University and The University ...

Genetics

Epigenomic map reveals circuitry of 30,000 human disease regions

Twenty years ago this month, the first draft of the human genome was publicly released. One of the major surprises that came from that project was the revelation that only 1.5 percent of the human genome consists of protein-coding ...

Medical research

A potential therapy for one of the leading causes of heart disease

Calcific aortic valve disease is not only the most common valve disease in the elderly, it's also the third leading cause of heart disease overall. For those affected, calcium starts to accumulate in their heart valves and ...

page 1 from 35

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.

This text uses material from Wikipedia, licensed under CC BY-SA