Urinary System
16.0 URINARY SYSTEM
Introduction The kidneys clean the blood and make urine. They also regulate the water and salt content in the body.
Urine is made in the kidneys and passes into the bladder via the ureters.
The urine travels from the bladder to the outside of the body via the urethra.
The urethra in females is large and empties into the vagina.



The urethra in males is small and easily blocked. It is located within the penis. See page 247.