Heart valves allow blood to flow one way and prevent it from flowing in the wrong direction. The tricuspid valve controls blood flow between the right atrium and right ventricle. The bicuspid or ...

The heart is a muscular organ composed of four chambers: two upper chambers called atria and two lower chambers called ventricles. These four chambers pump blood through the body in a rhythmic pattern ...

Medically reviewed by Rafle Fernandez, MD Key Takeaways Ventricular tachycardia is when the lower chamber of the heart beats ...

Mitral regurgitation (MR) and tricuspid regurgitation (TR) are two conditions involving backward leakage of blood through a heart valve when a ventricle contracts. People may experience either or both ...

Japanese scientists at Tokyo University of Agriculture and Technology (TUAT), Teikyo University of Science, and Juntendo University have found -- in animal studies -- a close relationship between ...