Progress Monitoring Measures. â¢designed to assess the same core features as the. research and annual self-assessment measures. â¢used by school teams (typically with the support of. their coach) on a frequent basis (e.g. monthly, every. two months, or quarterly) to guide action planning. during the implementation process.
The basic function of alveoli is exchange of gases. Its structure is the site where the gaseous exchange during respiration takes place. These structures are surrounded by capillaries carrying blood. The exchange of carbon dioxide in the blood from these capillaries occurs through the walls of alveolus.
How does this system perform such a magnificent feat? The answer lies in the ingenious architecture of the structures involved in the system. The lung consists of millions of grape-like structure known as alveoli, each capable of performing gaseous exchange every few seconds. The alveoli is adapted in its form to enhance its function. These adaptabilities include the thin single layer of epithelium lining, formation of surfactants and even its almost spherical shape.