Bronchioles and alveoli histology: Video & Anatomy

Alveoli Model - alveoli Alveoli The alveoli are the final branchings of the respiratory tree and act as the primary gas exchange units of the lung The gas-blood barrier between the alveoli The respiratory portion consists of respiratory bronchioles, alveolar ducts, alveolar sacs and alveoli It is hard to investigate the organisation of these

alveoli Bronchioles and alveoli in the lungs In your lungs, the main airways, called bronchi, branch off into smaller and smaller passageways The smallest airways,