What is the name of the tube that carries urine from the urinary bladder to the outside of the body?

The urethra is the tube that carries urine from the urinary bladder to the outside of the body. This muscular tube plays a crucial role in the urinary system, allowing for the excretion of urine. It is responsible for the final passage of urine, where it exits the body after being stored in the bladder.

The structure and function of the urethra vary slightly between males and females, but its primary role remains the same. In males, the urethra also serves a dual purpose by carrying semen, while in females, it is shorter and is exclusively involved in the urinary system.

Other options refer to different parts or functions within the urinary or reproductive systems. The ureter is the tube that carries urine from the kidneys to the bladder, while the renal tube is associated with the nephrons in the kidneys, involved in filtering blood and producing urine. The vas deferens is part of the male reproductive system, responsible for transporting sperm. Understanding the specific functions of these structures clarifies why the urethra is the correct answer for this question.