Coloured scanning electron micrograph (SEM) of a fractured mucous membrane of the trachea (wind pipe), showing the epithelium and underlying connective tissue. — Stock photos

"Coloured scanning electron micrograph (SEM) of a fractured mucous membrane of the trachea (wind pipe), showing the epithelium and underlying connective tissue." is an authentic stock image by ScienceRF. It’s available in the following resolutions: 1600 x 1156px, 2600 x 1878px, 4955 x 3579px. The minimum price for an image is 49$. Image in the highest quality is 4955 x 3579px, 300 dpi, and costs 449$.