Which of the following sequences correctly represents the order air passes through during inhalation in the respiratory system?
Nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, alveoli
Nasal cavity, pharynx, trachea, larynx, bronchi, bronchioles, alveoli
Nasal cavity, pharynx, larynx, trachea, bronchioles, bronchi, alveoli
Nasal cavity, larynx, pharynx, trachea, bronchi, bronchioles, alveoli
The Correct Answer is A
A. Nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, alveoli: This correctly lists the anatomical pathway air follows from entry to the gas-exchange sites.
B. Nasal cavity, pharynx, trachea, larynx, bronchi, bronchioles, alveoli: This places the trachea before the larynx (incorrect order); the larynx is between the pharynx and trachea.
C. Nasal cavity, pharynx, larynx, trachea, bronchioles, bronchi, alveoli: This incorrectly reverses bronchioles and bronchi -bronchi branch into bronchioles, not the other way around.
D. Nasal cavity, larynx, pharynx, trachea, bronchi, bronchioles, alveoli: This places the larynx before the pharynx (incorrect); air passes through the pharynx first then the larynx.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Regulating body temperature of the testes:Correct -the scrotum suspends the testes and adjusts their position to keep testicular temperature slightly below core body temperature, which is necessary for optimal sperm production.
B. Storing urine:Incorrect -urine is stored in the urinary bladder, not in the scrotum.
C. Producing sperm: Incorrect -sperm are produced in the seminiferous tubules inside the testes; the scrotum is a protective/powerful thermoregulatory sac, not the sperm-producing tissue.
D. Carrying sperm to the urethra: Incorrect -ducts such as the vas (ductus) deferens carry sperm toward the urethra; the scrotum does not transport sperm.
Correct Answer is ["C","D","E"]
Explanation
A. Converted to carbon monoxide: CO (carbon monoxide) is a different gas and is not a product or transport form of CO₂.
B. Bind to myoglobin: Myoglobin primarily binds O₂ within muscle cells; CO₂ transport by myoglobin is not a main mechanism.
C. Binds to hemoglobin: CO₂ can bind to hemoglobin (forming carbaminohemoglobin) as one transport form.
D. Converted to bicarbonate ions: Most CO₂ is converted to bicarbonate (HCO₃⁻) in red blood cells and transported in plasma.
E. Dissolved in plasma: A small proportion of CO₂ is carried dissolved directly in plasma.
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