The correct response is:
exchange oxygen in the air for carbon dioxide in the blood.
The alveoli are tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide occurs during respiration.
What function do the alveoli perform?(1 point)
Responses
hold receptors for the sense of smell
hold receptors for the sense of smell
carry oxygenated blood away from the heart
carry oxygenated blood away from the heart
exchange oxygen in the air for carbon dioxide in the blood
exchange oxygen in the air for carbon dioxide in the blood
exchange oxygen in the blood for carbon dioxide in the air
exchange oxygen in the blood for carbon dioxide in the air
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7 answers
Which organ of the respiratory system is located inside the lungs?(1 point)
Responses
larynx
larynx
bronchioles
bronchioles
trachea
trachea
nasopharynx
nasopharynx
Responses
larynx
larynx
bronchioles
bronchioles
trachea
trachea
nasopharynx
nasopharynx
The correct response is:
bronchioles.
Bronchioles are small air passages located within the lungs that branch off from the bronchi and lead to the alveoli where gas exchange occurs.
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 capillaries
the capillaries
the alveoli
the alveoli
the pulmonary vein
the pulmonary vein
the aorta
Responses
the capillaries
the capillaries
the alveoli
the alveoli
the pulmonary vein
the pulmonary vein
the aorta
The correct response is:
the alveoli.
Low blood oxygen levels, despite proper blood circulation, typically indicate an issue with gas exchange in the lungs, which occurs in the alveoli. These structures are responsible for transferring oxygen from the air into the blood and removing carbon dioxide from the blood. If the alveoli are not functioning properly, it can lead to reduced oxygen levels in the blood.
What is the function of the vena cava?(1 point)
Responses
It carries oxygenated blood from the heart to the body.
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 heart to the lungs.
It carries deoxygenated blood from the body to the heart.
It carries deoxygenated blood from the body to the heart.
It carries oxygenated blood from the lungs to the heart.
Responses
It carries oxygenated blood from the heart to the body.
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 heart to the lungs.
It carries deoxygenated blood from the body to the heart.
It carries deoxygenated blood from the body to the heart.
It carries oxygenated blood from the lungs to the heart.
The correct response is:
It carries deoxygenated blood from the body to the heart.
The vena cava consists of the superior and inferior vena cava, which are responsible for returning deoxygenated blood from the body back to the right atrium of the heart.
7 answers