Coloured scanning electron micrograph of the bronchial epithelial lining of the lung. The cilia (blue) and goblet cells (orange) help to keep the lungs free from disease (×7000)
Prof Cinti & V. Gremet/SPL
Lung
Gas exchange
Your organisation does not have access to this article.
Sign up today to give your students the edge they need to achieve their best grades with subject expertise
Subscribe