The Urethra


The urethra is a tube that directs urine from the the urinary bladder to outside of the body.


The urethra's wall is lined with a mucous membrane, it also has a relatively thick layer of smooth muscle tissue. The smooth muscle fibers within the urethra run longitudinally. Dispersed throughout the urethra are mucous glands, called urethral glands, that secrete mucous into the urethral canal.