Where does air pick up moisture and heat from the mucosa?.
Conchae or turbinates.
Sphenoid.
Nasopharynx.
Oropharynx.
The Correct Answer is A
Answer and explanation
The correct answer is Choice A.
Choice A rationale:
The conchae or turbinates are structures in the nasal cavity that increase the surface area of the mucosa exposed to the air. As air passes over the mucosa, it picks up moisture and heat, which helps to humidify and warm the air before it reaches the lungs.
Choice B rationale:
The sphenoid is a bone located at the base of the skull. It does not have a direct role in the heating or humidification of air.
Choice C rationale:
The nasopharynx is part of the pharynx that connects the nasal cavity to the throat. While it does play a role in the passage of air from the nose to the lungs, it is not the primary site where air picks up moisture and heat.
Choice D rationale:
The oropharynx is another part of the pharynx, located below the nasopharynx. It is involved in both respiratory and digestive processes, but it is not the main site where air picks up moisture and heat.
So, the correct answer is Choice A, after analyzing all choices.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is Choice B.
Choice A rationale:
Nitrogen is the most abundant gas in the atmosphere, but it is not the primary regulator of respiration.
Choice B rationale:
Carbon dioxide (CO2) is the main chemical regulator of respiration and the potent stimulus of the respiratory centers via the arterial chemoreceptors and directly on the central chemoreceptors.
Choice C rationale:
Oxygen is essential for cellular respiration, but it is not the primary regulator of respiration.
Choice D rationale:
Bicarbonate plays a role in maintaining the pH balance in the blood and is not the primary regulator of respiration.
Correct Answer is {"dropdown-group-1":"B"}
Explanation
Choice A rationale:
Peyer’s patches are lymphoid nodules located in the small intestine and play a role in immune surveillance of the intestinal lumen and in the facilitation of the immune response.
Choice B rationale:
The appendix serves as a reservoir for beneficial gut bacteria. It is a narrow pouch that projects off the cecum in the digestive system.
Choice C rationale:
Adenoids are not known to serve as a reservoir for beneficial gut bacteria. They are located in the upper part of the throat and are part of the immune system, helping to fight off infections and trap bacteria that enter through the nose.
Choice D rationale:
Tonsils are not known to serve as a reservoir for beneficial gut bacteria. They are lymphoid tissues located at the back of the throat and help protect the body from respiratory infections.
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