The epiglottis:
is located within the pleural cavities
is innervated by the phrenic nerve
Prevents food and water from getting into the respiratory passages
Is a tube that connects the pharynx and the middle ear
The Correct Answer is C
A. is located within the pleural cavities: it is part of the larynx, not the lungs.
B. is innervated by the phrenic nerve: phrenic nerve innervates the diaphragm, not the epiglottis.
C. Prevents food and water from getting into the respiratory passages: it acts as a flap that closes the trachea during swallowing.
D. Is a tube that connects the pharynx and the middle ear: that is the Eustachian tube.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Trachea
The trachea, commonly known as the windpipe, connects the larynx to the bronchi and allows air passage to the lungs.
B. Pharynx
-upper respiratory tract structure, far from alveoli.
C. Larynx
-upper airway structure above the trachea.
D. Alveoli
-terminal structures where gas exchange occurs.
Correct Answer is D
Explanation
A. Decreased K⁺ levels: Not related to respiratory drive.
B. Increased O₂ levels: May actually suppress the drive to breathe in COPD patients.
C. Decreased CO₂ levels: Would reduce respiratory drive, not increase it.
D. Increased CO₂ levels: Correct; high CO₂ levels stimulate the respiratory center to increase breathing rate.
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