These chambers are hollow and surrounded by muscle and other tissue. The right atrium plays a part in both the flow of blood through the heart and in the heart's electrical system. Deoxygenated ...

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 ...

From the right atrium, the blood goes into a single large muscular ventricle ... where a spiral valve through the middle of the conus separates the flow of blood into two channels. The deoxygenated ...

It illustrates blood flow dynamics through the heart's chambers, including the right atrium, right ventricle, and pulmonary arteries, as well as the return of oxygenated blood from the lungs to ...

It opens due to a build-up of pressure in the right atrium, and prevents back flow of blood from the right ventricle to the right atrium. The bicuspid valve separates the left atrium and left ...

As the person expires, the pressure in the right atrium decreases (since there is less venous return). The decreased pressure allows more blood to flow abnormally through the ASD from the high ...

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 ... The semilunar valves stop the back flow of blood into the heart. There is a semilunar valve where the aorta ...