Lungs: Facts, Function and Diseases | Live Science
Blood supply to the lungs | Complete Anatomy
Cilia in the Respiratory System | Overview, Structure & Function - Lesson | Study.com
Lung - Wikipedia
Definition of alveoli - NCI Dictionary of Cancer Terms - NCI
Lungs: tissues and cells (preview) - Human Anatomy and Histology | Kenhub - YouTube
1. Alveoli are air sacs in the lungs where gas exchange occurs with the blood. The tissue that makes up alveoli is simple squamous epithelium, which is different than the respiratory tract
How the Lungs Work - The Respiratory System | NHLBI, NIH