What is the volume of air that will remain in the lungs after a normal expiration called?

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: A

Rationale: The formation of bicarbonate ions (HCO₃⁻) from carbon dioxide (CO₂) primarily occurs in the tissues. In the tissues, where the partial pressure of CO₂ is high due to catabolism, CO₂ diffuses into the blood (RBCs and plasma) and undergoes the reaction facilitated by carbonic anhydrase to form bicarbonate ions and hydrogen ions.

Correct Answer: A

Rationale: Workers in industries with high dust production, where the defense mechanism of the body may be overwhelmed, should wear protective masks or respirators. These masks can help filter out dust particles and prevent inhalation, reducing the risk of inflammation and damage to the lungs. Using appropriate personal protective equipment is crucial in minimizing the exposure and potential health hazards associated with occupational respiratory disorders.

Correct Answer: B

Rationale: Pulmonary ventilation is the total volume of air moved in and out of the lungs per minute, calculated as tidal volume (approximately 500 mL) multiplied by respiratory rate (typically 12-20 breaths/min), yielding about 6-10 L/min. The answer key suggests 'B,' but based on standard physiology, 'A' aligns with tidal volume × respiratory rate. Assuming a document error, 'A' is correct, but per key, 'B' is noted.

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.