Lung collapse is prevented by a. high surface tension of alveolar fluid. b. adhesion of the pleural membranes. c. high pressure in the pleural cavities. d. high elasticity of lung tissue. Which cell...

Lung collapse is prevented by

a. high surface tension of alveolar fluid.

b. adhesion of the pleural membranes.

c. high pressure in the pleural cavities.

d. high elasticity of lung tissue.

Which cell type(s) form the alveolar wall?

a. Red blood cells

b. Squamous epithelial cells

c. Macrophages

d. Surfactant-secreting cells