Where does gas exchange occur?.
The alveoli.
The bronchioles.
The bronchus.
The lungs.
The Correct Answer is A
Choice B rationale:
The bronchioles are part of the airway that leads to the alveoli, but gas exchange does not occur here.
Choice C rationale:
The bronchus is a larger airway that leads to the bronchioles and then to the alveoli, but gas exchange does not occur here.
Choice D rationale:
While the lungs contain the alveoli where gas exchange occurs, saying that gas exchange occurs in the lungs is not as precise as saying it occurs in the alveoli.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Abdominal thrusts, also known as the Heimlich maneuver, are a first-aid technique used to treat conscious choking victims in which the rescuer delivers thrusts to a patient’s upper abdominal region. This motion pushes air from the lungs up through the throat to dislodge foreign objects and treat upper airway obstructions.
Choice B rationale:
Chest thrusts can also be used if needed. However, they are not the primary method for dislodging a foreign object in someone that is choking.
Choice C rationale:
Chest pumps are not a recognized method for dislodging a foreign object in someone that is choking.
Choice D rationale:
Bowel thrusts are not a recognized method for dislodging a foreign object in someone that is choking.
So, the correct answer is Choice A.
Correct Answer is C
Explanation
Choice A rationale:
While the nasopharynx does play a role in warming and moistening inspired air, this is not its primary function.
Choice B rationale:
The nasopharynx does not primarily filter dust. This function is mainly performed by the nasal cavity and the hairs within the nostrils.
Choice C rationale:
The nasopharynx provides openings for the right and left Eustachian tubes. These tubes connect the middle ear to the nasopharynx and help equalize air pressure on either side of the eardrum.
Choice D rationale:
The nasopharynx does not contain olfactory receptors responsible for the sense of smell. These receptors are located in the nasal cavity.
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