Which of the following is true about the sinuses? Select all that apply.
(Select All that Apply.).
Air-filled cavities.
Located in the skull and around the nose.
Help lighten the head.
Gas exchange occurs.
Correct Answer : A,B,C
Choice A rationale:
Sinuses are indeed air-filled cavities. They are hollow spaces in the skull and the face bones around your nose.
Choice B rationale:
Sinuses are located in the skull and around the nose. There are four pairs of sinuses, named for the bones that they’re located in.
Choice C rationale:
One of the functions of the sinuses is to help lighten the head. The air-filled cavities provide a sort of crumple zone that can absorb impact and protect the brain.
Choice D rationale:
Gas exchange does not occur in the sinuses. The primary function of the sinuses is to produce mucus that moistens the inside of the nose. This mucus layer serves to trap dust and other particles that might otherwise reach the lungs.
Choice E rationale:
The sinuses do not directly help with hearing. The structures that are primarily responsible for hearing are the ears, specifically the eardrums and the bones of the middle ear. So, the correct answers are Choices A, B, and C, after analyzing all choices. .
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
hoice A rationale:
External intercostals assist in inspiration by elevating the ribs and expanding the chest cavity.
Choice B rationale:
Abdominals are not the main muscles responsible for pulmonary ventilation.
Choice C rationale:
Internal intercostals assist in forced expiration.
Choice D rationale:
The diaphragm is the main muscle responsible for pulmonary ventilation.
So, the correct answer is Choice D, after analyzing all choices.
Correct Answer is D
Explanation
Choice A rationale:
While the spleen is the body’s largest lymphatic organ, this statement does not encompass all of its functions.
Choice B rationale:
The spleen does contribute to the production of white blood cells, but this is not its only function.
Choice C rationale:
The spleen does play a role in immunity, but it has other functions as well.
Choice D rationale:
This choice accurately describes the multiple functions of the spleen, including immunity, destruction of old red blood cells, blood storage, and hematopoiesis.
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