CAROL & MIKE WERNER / VISUALS UNLIMITED, INC. / SCIENCE PHOTO LIBRARY CAROL & MIKE WERNER / VISUALS UNLIMITED, INC. / SCIENCE PHOTO LIBRARY
Biomedical illustration of a section of human large intestine showing the use of colonoscopy to inspect and remove growths such as the polyps or other irregularities. The colonoscope contains a camera and light at its tip and a passage through which to insert surgical instruments or medication.
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