Urethra

Real World Example

Imagine trying to get toothpaste out of a nearly empty tube. Just like you need to squeeze the tube to direct the toothpaste out through a small opening, the body uses the urethra to channel urine from the bladder to the outside. In this analogy, the toothpaste tube is like the bladder, the toothpaste represents the urine, and the tiny opening of the tube resembles the urethra, which ensures the smooth flow of contents out of the body.