SEM of section of human lung

SEM of section of human lung

P590/0038 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 27.5MB

Downloadable file size: 1.5MB

Price image Pricing

Please login to use the price calculator


Caption: Scanning electron micrograph (SEM) of a section of human lung, showing alveoli (bottom & left) & a bronchiole (top). In humans, some 700 million alveoli, with a total surface area the size of a tennis court, perform the lungs' primary role of gas exchange. The walls of the alveoli are usually composed of just one layer of cells. Fine blood capillaries run alongside them, & oxygen & carbon dioxide readily diffuse across the 0.3 micrometre thick barrier between them. The bronchiole is one of the finer divisions of the air passages of the lungs; its corrugated inner surface is due to its highly folded epithelial lining. Magnification: x70 at 35mm size. Reference: MICROCOSMOS, figure 2.34, page 33.

Release details: Model release not required. Property release not required.

Keywords: alveolus, anatomy, bronchiole, human body, lung, lungs, respiratory system

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.