Contact: CJ Kazilek
kazilek@asu.edu
Arizona State University
Caption: A scanning electron micrograph of sweat on a human index finger tip. The ridges are what form our finger prints. Technically it is a replica made from the tip of an index finger. The replica is then placed inside a scanning electron microscope. Photo by Jim Swafford.
Credit: Courtesy: Arizona State University
Usage Restrictions: Image courtesy of Arizona State University (ASU). ASU encourages the use of this image as well as other material from the ASU Ask a Biologist Web site. Distribution of this image is permitted under the following rules: