The mitral valve is positioned between the heart’s left atrium and ventricle. It opens to allow blood to flow into the left ventricle and closes to prevent backflow into the left atrium.

Blood flows through the left atrium into the left ventricle. The left ventricle pumps the oxygen-rich blood to all parts of the body. Do right and left seem backward? That's because you're looking ...

Diastolic dysfunction occurs when the left ventricular myocardium is non-compliant and not able to accept blood return in a normal fashion from the left atrium. This can be a normal physiologic ...

Hypertrophic cardiomyopathy, also known as HCM or thick heart syndrome, is a genetic condition that causes your heart muscle ...

then to the left and right bundle branches, and finally to the ventricular muscle. Abnormalities can occur anywhere on that route; patients can be born with additional connections between the atrium ...

The normal mitral valve permits unrestricted antegrade diastolic flow from the left atrium to the left ventricle (LV) and effectively seals off the atrium from the ventricle during LV systole ...

The left-hand side pumps oxygenated blood around the body. Each side of the heart consists of an atrium and a ventricle which are two connected chambers. The atria (plural of atrium) are where the ...

This twisting results in the shape of the heart and the positioning of the atria and ventricles seen in adult amniotes. In lungfish, the heart is partially divided into a right and left atrium. The ...

A 76-year-old woman presents with a persistently rapid heart rate that she attributes to her pacemaker. What does the ECG ...

Dear Doctors: I am a 47-year-old woman in good health. I exercise regularly and eat a healthy diet. At my physical, I was surprised when my doctor said I have A-fib. I have never felt anything ...

Atrial functional mitral regurgitation (AFMR) is a common type of MR linked to high rates of heart failure, highlighting the ...

Blood flows through the left atrium into the left ventricle. The left ventricle pumps the oxygen-rich blood to all parts of the body. amazing heart facts.