for blood to reach the right atrium from the small intestines it follows this path:
Small veins - portal vein- liver- inferior caval vein - right atrium
The blood flows mostly northwards
Yes, both the superior and inferior vena cava carry deoxygenated (oxygen-poor) blood and deposit it into the right atrium of the heart.
Blood returning to the right atrium of the heart is deoxygenated.
The right atrium is where deoxygenated blood enters the heart.
right atrium
The blood re-enters the heart through the superior vena cava and into the right atrium.
The pulmonary vein transports oxygenated blood from the lungs to the right atrium of the heart.
Right atrium
The right atrium is where the blood enters the heart.
Oxygen-poor blood enters the heart through the right atrium
In the leopard frog heart, the right atrium carries oxygen poor blood and the left atrium carries oxygen rich blood.
The left atrium of the heart receives oxygented blood from the pulmonary veins returning oxygenated blood to the heart.
Atrium