Where is most oxygen transported by blood?

Answer 1

In Homo sapiens, blood is most highly oxygenated as it leaves the lungs in the pulmonary vein. It travels from the pulmonary vein to the left atrium, is transferred to the left ventricle, and is pumped through the aorta. From the aorta, it travels through various arteries to deliver oxygen and nutrients to the body's tissues. It travels back to the heart through the veins, is pumped from the right atrium into the right ventricle, and exits the heart in the pulmonary artery. This deoxygenated blood returns to the lungs through the pulmonary artery to retrieve more oxygen.

In a healthy Homo sapien, the blood traveling from the pulmonary vein and through the arteries should always be 99%-100% oxygenated.

Answer 2

Blood leaving the lungs has the greatest amount of oxygen.

Answer 3

The alveoli, where oxygen is diffused into the blood, that is where the greatest concentration is therefore it must have the greatest pressure.

Answer 4

Hemoglobin.