Which flap made of cartilage prevents food and water from entering the respiratory passages?
Epiglottis
Tonsils
Uvula
Appendix
The Correct Answer is A
A. Epiglottis: The epiglottis is a flap of cartilage that covers the laryngeal opening during swallowing to prevent food or liquid from entering the airway.
B. Tonsils: Tonsils are lymphatic tissues in the pharynx that help trap pathogens, not prevent aspiration.
C. Uvula: The uvula helps close off the nasopharynx, not the trachea, during swallowing.
D. Appendix: The appendix is a blind-ended tube attached to the cecum; it plays no role in swallowing or airway protection.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Renal capsule: This is the outer protective covering of the kidney and does not form urine.
B. Nephron: The nephron is the functional unit of the kidney that performs filtration, reabsorption, and secretion to form urine.
C. Renal pyramid: These structures contain parts of the nephron and collecting ducts but do not themselves make urine.
D. Ureter: The ureter transports urine from the kidneys to the bladder; it does not produce urine.
Correct Answer is C
Explanation
A. Urethra: The urethra is a tube that carries urine from the bladder to outside the body—part of the “plumbing.”
B. Ureters: These are tubes that transport urine from the kidneys to the bladder.
C. Glomeruli: Glomeruli are part of the kidney’s filtration system, not the excretory “plumbing” system.
D. Urinary bladder: The bladder stores urine and is considered part of the urinary “plumbing.”
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