Final answer:
The urethra connects the urinary bladder to the external opening of the body, not the kidney to the bladder, which is a role served by the ureters. The urethra transports urine (and in males, also semen) outside the body.
Step-by-step explanation:
The statement that the urethra is a narrow tube connecting the kidney to the bladder is False. In fact, it is the ureters that connect the kidneys to the bladder. The ureters are paired tube-like structures that arise at the renal pelvis of a kidney and travel down to the urinary bladder, transporting urine through peristalsis. The urethra, on the other hand, is a tube that connects the urinary bladder to the external urethral orifice, facilitating the disposal of urine from the bladder to the outside of the body. In males, the urethra is longer and also carries semen, while in females, it is shorter and only transports urine.