A national emblem is a symbol that represents a nation. It may or may not appear on the national flag. It is usually something from the natural world, eg. an animal or bird, but can be any object.
The official national emblems of nations of the world in alphabetical order :
... anatomy, the urethra is a tube that connects the urinary bladder to the outside of the body. The urethra has an excretory function in both sexes, to pass urine to ...