What function do the alveoli perform?(1 point)
Responses
hold receptors for the sense of smell
exchange oxygen in the blood for carbon dioxide in the air
carry oxygenated blood away from the heart
exchange oxygen in the air for carbon dioxide in the blood
The function of the alveoli is to exchange oxygen in the air for carbon dioxide in the blood.
Which organ of the respiratory system is located inside the lungs? (1 point)
Responses
bronchioles
trachea
larynx
nasopharynx
The bronchioles are the organ of the respiratory system that is located inside the lungs.
A patient has low blood oxygen levels, although the patient's blood is circulating properly. Which is most likely functioning improperly?(1 point)
Responses
the alveoli
the aorta
the pulmonary vein
the capillaries
In this case, the most likely organ/function that is functioning improperly is the alveoli. The alveoli are responsible for exchanging oxygen in the air for carbon dioxide in the blood. If they are not functioning properly, oxygen may not be adequately entering the bloodstream, leading to low blood oxygen levels.
What is the function of the vena cava? (1 point)
Responses
It carries oxygenated blood from the heart to the body.
It carries deoxygenated blood from the heart to the lungs.
It carries deoxygenated blood from the body to the heart.
It carries oxygenated blood from the lungs to the heart.