A patient has low blood oxygen levels, although the patient's blood is circulating properly. Which is most likely functioning improperly? (1 point)

• the pulmonary vein
• the alveoli
• the aorta
• the capillaries

1 answer

The most likely structure that is functioning improperly is the alveoli. The alveoli are small air sacs in the lungs where oxygen is exchanged with carbon dioxide. If the alveoli are not functioning properly, it can lead to a decrease in blood oxygen levels, even if the blood is circulating properly.