A student is describing the tissue that makes up the walls of the alveoli in the lungs. It appears that these walls are composed of flattened cells arranged in a single layer to facilitate gas exchange. Which one of the following terms best describes this tissue?
A) simple cuboidal
B) stratified squamous
C) simple squamous
D) simple columnar
E) stratified cuboidal

Question

Quizplus · Accepted Answer

The walls of the alveoli are composed of simple squamous epithelium, which consists of a single layer of flattened cells. This structure is ideal for efficient gas exchange between the air in the alveoli and the blood in the surrounding capillaries.

A Student Is Describing the Tissue That Makes Up the Walls