Question

Which of the following is not one of the components of the respiratory membrane?

a. Simple squamous epithelial cells.
b. A fused basal lamina.
c. Smooth muscle fibers.
d. Capillary endothelial cell.

Answer 1

Smooth muscle fibers are not one of the components of the respiratory membrane.

Step-by-step explanation:

Among the given options, smooth muscle fibers are not one of the components of the respiratory membrane.

The respiratory membrane is composed of simple squamous epithelial cells (specifically, type I alveolar cells), a fused basal lamina, and capillary endothelial cells.