What is a structure of the inner ear?.
Tragus.
Cerumen.
Cochlea.
Helix.
.
The Correct Answer is C
The correct answer is Choice C. -
Choice A rationale:
The bicuspid valve, also known as the mitral valve, prevents backflow from the left ventricle to the left atrium. -
Choice B rationale:
The semilunar valves include the aortic and pulmonary valves, but neither prevents backflow into the right atrium. -
Choice C rationale:
The tricuspid valve prevents backflow from the right ventricle to the right atrium. -
Choice D rationale:
The aortic valve prevents backflow from the aorta to the left ventricle.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
The lymphatic system has many functions, including immunity, absorption of fats, and the maintenance of fluid balance. Choices B and C rationale: While the lymphatic system does play a role in immunity and maintaining fluid balance, these are not its only functions.
Choice D rationale:
The lymphatic system does not directly regulate electrolyte balance.
So, the correct answer is Choice A, after analyzing all choices.
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.
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