Which endoscope is specifically used to visualize the lower part of the large intestine?

The sigmoidoscope is specifically designed for visualizing the lower part of the large intestine, which includes the rectum and the sigmoid colon. This instrument allows healthcare professionals to examine these areas for abnormalities, such as polyps or signs of disease. The sigmoidoscope is a flexible tube equipped with a light and camera, enabling doctors to not only see but also document the condition of the intestinal lining during a procedure known as a flexible sigmoidoscopy.

The colonoscope, on the other hand, is used for examining the entire colon rather than just the lower portion. The gastroscope is intended for viewing the upper gastrointestinal tract, including the esophagus and stomach, while the ureteroscope is specialized for examining the urinary tract, specifically the ureters. Understanding the specific uses of these tools is important for ensuring accurate diagnosis and treatment in gastrointestinal health.