What is the main function of pulmonary surfactant in domestic mammals?
Correct answer: B. Reduce alveolar surface tension
- A. Increase airway mucus production
- B. Reduce alveolar surface tension
- C. Stimulate red cell formation
- D. Increase pleural fluid volume
Explanation
Surfactant lowers alveolar surface tension and helps prevent alveolar collapse, especially during expiration. It is produced mainly by type II alveolar cells, not by erythropoietic tissue.
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About Veterinary Anatomy and Physiology
Covers the gross and microscopic structure of domestic animals, including bones, joints, muscles, organs, blood vessels and nerves. It explains how the respiratory, cardiovascular, digestive, urinary, nervous, endocrine and reproductive systems function, with attention to species differences and the relationship between anatomical structure and physiological processes.
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