An alveolus (plural: alveoli), is an anatomical structure that has the form of a hollow cavity.
In the lung, the pulmonary alveoli are spherical outcroppings of the respiratory bronchioles and are the primary sites of gas exchange with the blood.
Alveoli are peculiar to mammalian lungs; different structures are involved in gas exchange in other vertebrates.
The alveoli are found in the respiratory zone of the lungs.
For more information about the topic Pulmonary alveolus, read the full article at Wikipedia.org, or see the following related articles:
Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
Recommend this page on Facebook, Twitter,
and Google +1:
Other bookmarking and sharing tools: