医学文章阅读——Endoscopy
2025-07-31 09:52:10 etogether.net 网络 次
Functions of endoscopy
Endoscopy is a way of examining parts of the body which are not visible from the outside. A typical endoscope is a flexible tube which is inserted through one of the natural orifices -openings - such as the anus or mouth. Rigid endoscopes, which cannot be bent, are also used but are inserted through small incisions - surgical cuts. The shaft contains several channels to transmit light from the outside and images from inside and to allow different instruments to be used.
Endoscopes can be used for the following:
* to provide diagnostic information
* to excise -cut out - diseased tissue or growths such as polyps
* to clear obstructions
* to take a biopsy
* to cauterize a site of bleeding by applying heat.
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