The table presents the partial pressure of carbon dioxide and oxygen in two blood vessels. What accounts for the difference in oxygen partial pressure between the pulmonary artery and the pulmonary vein?
- AOxygen diffuses from the alveoli into the blood in the capillaries.
- BCarbon dioxide diffuses into the alveoli from the blood in the capillaries.
- COxygen diffuses from the body cells into the blood in the capillaries.
- DCarbon dioxide diffuses into the body cells from the blood in the capillaries.