In normal human adult physiology, the CO2 concentration in the right atrium is relatively high (typically 46mmHg). In contrast, after exchange in the lungs, blood entering the left atrium has a CO2 concentration of roughly 40 mmHg.
This will be different in some heart conditions and fetal circulation.
Yes, the blood entering the right atrium low in oxygen because it has just returned to the heart after nourishing the body with needed oxygen.
Carbon dioxide. The blood in the right atrium has just circulated through the body and it needs to go to the lungs to receive oxygen.
Medium.
low
high
Yes
Mostly nitrogen, oxygen, and carbon dioxide.
Both! Blood enters the atria (upper chambers) on both sides of the heart at the same time. Blood from the body, carrying carbon dioxide, enters the right atrium. Blood from the lungs, carrying oxygen, enters the left atrium. The two atria contract together, pumping the blood into the two ventricles (lower chambers). The ventricles then contract, pumping blood out of the heart. Blood from the right ventricle goes to the lungs, where it loses its carbon dioxide and picks up oxygen. It then goes to the left atrium. Blood from the left ventricle goes to the body, where it delivers oxygen and picks up carbon dioxide. See: http://www.bbc.co.uk/science/humanbody/body/factfiles/heart/heart.shtml
Carbon dioxide and water
a little oxygen and a lot of carbon dioxide
oxygen enters the blood and carbon dioxide
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.
a little oxygen and a lot of carbon dioxide
a little oxygen and a lot of carbon dioxide
Blood celivers oxygen to body cells and collects carbon dioxide and other waste products
As blood leaves the right atrium, it proceeds to the right ventricle. From there, it moves into the lungs and exchanges its carbon dioxide for oxygen in preparation for transport around the body.
yes
Venous blood is loaded with carbon dioxide and low in oxygen Arterial blood is rich in oxygen with little carbon dioxide
carbon dioxide
Deoxygenated blood is low in oxygen and high in carbon dioxide.
The right atrium receives "de-oxygenated" blood (blood from the body containing less oxygen and more carbon dioxide) and the right ventricle sends this blood toward the lungs.
The lung takes carbon dioxide out of your blood and replaces it with oxygen.
The mechanisms for transporting oxygen and carbon dioxide in the blood are the lungs. The blood vessels are also needed for transporting oxygen and dispelling carbon dioxide.