The blood which enters the heart from the pulmanary vein is oxyen rich.
What part of the cirrculatory system brings blood back to the heart?
What is the the name of the part of the heart where the blood exits the heart?
Discribe the blood flow through the heart a lungs starting with the superior vena cava and ending with the aorta. Please include the valves which they pass through and any arteries or veins.
How many chambers does the human heart have?