DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Endoscope. Gloved hand holding the tip of an endoscope. An endoscope is designed to be inserted inside the human body. The lights illuminate the area being studied, and video and camera images can be obtained through a fibre optic cable inside the endoscope. Some endoscopes also contain small cutting tools that can be used to carry out microsurgery inside the human body. The digestive tract is an area commonly investigated using endoscopes, either inserted down the oesophagus, or upwards into the colon.
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