Oxygen.
Blood that flows into the right atrium is returning from the body and is deoxygenated. This means that it contains less oxygen and mostlycarbon dioxide.
The blood flows from the right atrium through the tricuspid valve to the right ventricle.
It's a chamber in the heart in which blood flows. It flows through the right atrium and into the right ventricle where it is then pumped into the lungs.
The Aorta
The Deoxygenated blood flows from the body into the right atrium. Oxygenated blood from the lungs flows into the left atrium. Since frogs have only one ventricle, the oxygenated and deoxygenated blood mixes in the ventricle. From there, blood flows into the truncus arteriosus that contains a spiral valve to separate and lead the blood out into the body.
Deoxygenated.
Blood flows from the right atrium of the heart into the right ventricle to the pulmonary artery to the lungs where the blood is oxygenated. From there it flows to the pulmonary vein to the left atrium and ventricle, then to the aorta.
As deoxygenated blood returns from the body, it flows from the vena cava into the right atrium. From the right atrium the blood flows into the right ventricle which pumps the blood through the pulmonary artery to the lungs. Oxygenated blood returns from the lungs via the pulmonary vein and enters the left atrium. The left atrium empties into the left ventricle which pumps the blood through the aorta and to the body.
There are many section in the heart, starting with: The Superior Vena Cava, where de-oxygenated blood flows in from the body. From there the blood flows into the Right Atrium, through the Tricuspid Valve and into the Right Ventricle. After the blood is in the Right Ventricle, the blood flows out of the heart through the Inferior Vena Cava and in to the lungs, where it can be oxygenated. Once oxygenated, the blood flows back into the heart through the Pulmonary Artery. From the Pulmonary Artery the blood flows into the Left Atrium, through the Mitral Valve and into the Left Ventricle. From there the blood flows through the Pulmonary Valve to the Aorta and out into the body. The process then starts over from there.
Blood in the right atrium typically contains a high proportion of deoxygenated blood, which is low in oxygen and high in carbon dioxide.
No, it flows from the Right Atrium to the Right Ventricle then to the Left Atrium to the Left Ventricle. Hope this helps!
a little of blood and a lot of carbon dioxide