Craig A. Simmons is in the Translational Biology & Engineering Program at the Ted Rogers Centre for Heart Research, and in the Department of Mechanical & Industrial Engineering and Institute of ...

The right coronary artery and the atrioventricular node are adjacent to the annulus and are important anatomical considerations for surgical or transcatheter interventions. The right coronary artery ...

Your aortic valve is part of your heart, a strong muscle that pumps blood through your body. The aortic valve controls the blood flowing out from the heart. It opens every time your heart contracts, ...

A leaky heart valve means blood isn’t moving correctly through one of the heart’s four valves. This can cause complications like heart rhythm disturbances and heart failure. But treatment is usually ...

The four valves of the heart allow blood to flow through the heart in the right direction. The valves open or close each time the heart beats. Problems with the heart valves can lead to palpitations, ...

Directional-control valves are common in pneumatic systems. They control compressed-air flow to cylinders, rotary actuators, grippers, and other mechanisms in packaging, handling, assembly, and ...

The mitral valve is a flap of tissue that sits in the left side of the heart, between the left atrium and the left ventricle. It keeps blood flowing in the forward direction, from the atrium into the ...