The fluid that lines the inside of the alveoli is produced by
A)cuboidal epithelial cells in the terminal bronchioles
B)alveolar macrophages
C)squamous pulmonary epithelial cells
D)surfactant-secreting cells
E)capillary endothelial cells

Question

Quizplus · Accepted Answer

The fluid that lines the inside of the alveoli is produced by surfactant-secreting cells. Surfactant is a mixture of lipids and proteins that helps reduce the surface tension of the fluid in the alveoli, preventing them from collapsing during expiration.

The Fluid That Lines the Inside of the Alveoli Is