Which Structure Has the Thinnest Wall

Question

Which structure has the thinnest wall?
A) Trachea
B) Bronchi
C) Larynx
D) Alveoli

Accepted Answer

Alveoli have the thinnest wall among the given structures. This is because they are composed of a single layer of epithelial cells, which allows for efficient gas exchange between the lungs and the bloodstream.