It starts in the sinus node, located in the right atrium, and travels through both atria to stimulate contraction. It then goes to the atrioventricular node and travels toward the ventricles to ...

Oxygen-poor blood (shown in blue) flows from the body into the right atrium. Blood flows through the right atrium into the right ventricle. The right ventricle pumps the blood to the lungs ...

The tricuspid valve is located between the right atrium and right ventricle and opens due to a build-up of pressure in the right atrium. The bicuspid valve is located between the left atrium and ...

It is located in the middle of the chest and slightly ... The tricuspid valve separates the right atrium and right ventricle. It opens due to a build-up of pressure in the right atrium, and ...