Which structure is responsible for directing food and liquids into the esophagus during swallowing?.
Glottis.
Adam's apple.
Conchae.
Epiglottis.
.
The Correct Answer is D
Choice A rationale:
The glottis is the space between the vocal cords and does not direct food and liquids into the esophagus during swallowing.
Choice B rationale:
The Adam’s apple, also known as the thyroid cartilage, is a structure in the neck and does not direct food and liquids into the esophagus during swallowing.
Choice C rationale:
The conchae are structures in the nasal cavity and do not direct food and liquids into the esophagus during swallowing.
Choice D rationale:
The epiglottis is responsible for directing food and liquids into the esophagus during swallowing. It acts as a lid over the windpipe, preventing food from entering the lungs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
While veins do convey blood back to the heart, this is not the reason they are called capacitance vessels.
Choice B rationale:
Veins are referred to as capacitance vessels because they can stretch and contain about 60% of the body’s blood volume.
Choice C rationale:
Although veins contain one-way valves, this characteristic does not define them as capacitance vessels.
Choice D rationale:
Veins can constrict, but this is not the primary reason they are known as capacitance vessels.
Correct Answer is D
Explanation
The correct answer is Choice D.
Choice A rationale:
Vasoconstriction refers to the narrowing of blood vessels. When blood vessels constrict, they reduce the volume of blood that can flow through them, which increases the pressure. However, the flow is decreased, not increased.
Choice B rationale:
As explained above, vasoconstriction increases pressure but decreases flow.
Choice C rationale:
While vasoconstriction does increase pressure, it does not increase flow. Instead, it decreases flow.
Choice D rationale:
Vasoconstriction results in increased pressure and decreased flow. This happens because the narrowing of the blood vessels increases the resistance to blood flow, thereby increasing the pressure. At the same time, the reduced diameter of the blood vessels decreases the amount of blood that can flow through them.
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