ATI RN
Respiratory System Practice Questions Questions
Question 1 of 5
Which respiratory structure is characteristic of insects?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
What is the purpose of using a spirometer in assessing pulmonary functions?
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 5
What is the total volume of air accommodated in the lungs at the end of a forced inspiration called?
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 4 of 5
What are the three major layers that make up the diffusion membrane for gas exchange in the respiratory system?
Correct Answer: C
Rationale: The diffusion membrane for gas exchange in the respiratory system is composed of three major layers: the thin squamous epithelium of the alveoli, the endothelium of the alveolar capillaries, and the basement substance that lies between them. These layers together form a thin barrier through which gases can easily diffuse during respiration.
Question 5 of 5
What is the approximate percentage of oxygen (O₂) carried in a dissolved state through the plasma in the blood?
Correct Answer: D
Rationale: Around 97% of oxygen (O₂) is carried in the blood by binding to red blood cells (RBCs). The remaining 3% is transported in a dissolved state through the plasma. While dissolved O₂ plays a minor role in overall oxygen transport, it contributes to maintaining the partial pressure of oxygen in the blood.