Answer to Question #277312 in Human Anatomy and Physiology for saleh

Question

Describe the structure and function of alveoli.

Answer 1

Alveoli are tiny balloon-shaped structures.This is the term used to describe the tree-like structure of passageways that brings air into the lungs. The walls of the alveoli are very thin. This lets oxygen and CO2 pass easily between the alveoli and capillaries, which are very small blood vessels.