Which instrument is specifically designed to examine the interior of the bladder?

• A. Endoscope
• B. Cystoscope
• C. Stethoscope
• D. Otoscope

Answer: (B)

The cystoscope is specifically designed for examining the interior of the bladder. This specialized instrument is an endoscopic device that allows a physician to visualize the bladder's lining and urethra. It consists of a long, thin tube with a camera and light source, which provides a clear view of these internal structures.

Using the cystoscope is vital in diagnosing various urological conditions, including bladder stones, tumors, or signs of inflammation. The ability to directly visualize the bladder helps in planning treatment and interventions based on the findings during the examination.

The other instruments listed are designed for different purposes: an endoscope is used for examining the gastrointestinal tract, a stethoscope is used for listening to internal body sounds, and an otoscope is used for examining the ear canal and eardrum. Thus, the cystoscope stands out as the specific instrument for bladder examination due to its specialized function and design.