Pioneered
in the 1900s, endoscopy examines the inside of the body with minimal
invasive effects. Two main types exist. The rigid endoscope is a metal
tube which is inserted into the body. A light is shone down the tube,
and the image is carried back up the tube by relay lenses. Rigid endoscopes
are limited to viewing the bladder (cystoscopy), abdomen (laparoscopy)
and joints (arthroscopy). The invention of fibre optics in the 1960s
led to flexible endoscopes. These follow the twists of the digestive
system, such as the colon (colonoscopy) and the stomach and duodenum
(gastroscopy). Modern endoscopes are fitted with tiny instruments for
obtaining tissue samples or performing small surgical procedures.
See more techniques:
Aerial Photography
Computed Tomography (CT Scans)
Endoscopy
High Speed Photography
Kirlian Photography
Light Microscopy (LM)
Magnetic Resonance Imaging (MRI)
Molecular Models
Radionuclide Scanning (Gamma Scanning)
Satellite Images
Scanning Electron Microscopy (SEM)
Scanning Tunnelling Microscopy (STM)
Schlieren Photography
Space Photography (NASA)
Thermography
Transmission Electron Microscopy (TEM)
Ultrasound Images
Ultraviolet Photography
X-Rays
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