Alveoli SEM

An alveolus (plural: alveoli, from Latin alveolus, “little cavity”) is an anatomical structure that has the form of a hollow cavity. Found in the lung parenchyma, the pulmonary alveoli are the terminal ends of the respiratory tree, which outcrop from either alveolar sacs or alveolar ducts, which are both sites of gas exchange with the blood as well. (from Wikipedia)

Image from post-mitotic tumblr (link). Image by David Gregory and Debbie Marshall

Other similar posts
This entry was posted in Respiratory and tagged , , , , .