The nurse is reviewing with the client ways in which the respiratory system is protected. The walls of the alveoli are composed of a single layer of cells and are lined with a chemical called surfactant
Based on this information, what is the role of surfactant in the lungs?
1 . Preserves the elastic property of lung tissue
2 . Reduces friction of lung tissue
3 . Maintains the surface tension in the pulmonary lung fields
4 . Prevents collapse of the alveolar walls on inspiration
A) 1, 2,
B) 1, 3
C) 2, 4
D) 3, 4
A
Feedback:
The surfactant in the lungs acts to break up the surface tension in the pulmonary (lung) fluids, much like laundry detergent breaks up dirt and grease particles. This reduces friction and preserves the elastic property of lung tissue, thus preventing collapse of the alveolar walls between breaths.
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Indicate whether the statement is true or false