What Type of Tissue Forms the Walls of the Alveoli

Question

What type of tissue forms the walls of the alveoli?
A) Pseudostratified ciliated columnar epithelium
B) Simple squamous epithelium
C) Stratified squamous epithelium
D) Loose connective tissue

Accepted Answer

The walls of the alveoli are formed by simple squamous epithelium, which facilitates the exchange of gases (oxygen and carbon dioxide) between the air in the alveoli and the blood in the surrounding capillaries.