Which of the Following Conditions Must Exist for Gas to Move

question 73

Multiple Choice

Which of the following conditions must exist for gas to move between the alveolus and pulmonary capillary?

• A)adequate alveolar ventilation (V_A)
• B)difference in partial pressures (pressure gradient)
• C)normal central nervous system (CNS) control mechanism
• D)sufficient amount of blood hemoglobin (Hb)

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Definitions:

Obstructive Jaundice

A condition characterized by the yellowing of skin and eyes due to a blockage in the bile ducts, which prevents bile (containing broken down red blood cells) from being processed and eliminated properly.

Cirrhosis

Chronic, irreversible injury to liver tissue; commonly caused by frequent alcohol consumption.

Acute Diarrhea

A condition characterized by the abrupt onset of frequent, loose, water stools that lasts less than 14 days, often due to infection or toxin ingestion.

Protozoan

Heterotrophic, single-celled protist that moves by flagella, cilia, or pseudopodia.