Question

the source of pulmonary surfactant is the:

a. Alveolar capillaries

b. Bronchial glands

c. visceral pleura

d. great alveolar cells

e. Squamous alveolar cells

Answer 1

The correct option is a

• Pulmonary surfactant is a mixture of lipids and proteins which is secreted into the alveolar space by epithelial type II cells or by the alveolar capillaries
• The main function of the surfactant is to lower the surface tension at the air/liquid interface within the alveoli of the lung.