Identifying the urethra in the urinary system

Steps:

• Recall urine flow: produced in kidneys, flows through ureters to bladder for storage.
• Note bladder connects to a single tube exiting the body.
• Locate the structure matching this exit tube in the diagram.
• Confirm it carries urine from bladder to exterior.

Why C is correct:

• The urethra is defined as the duct transporting urine from the bladder to the outside of the body.

Why the others are wrong:

• A is a kidney, which produces urine.
• B is a ureter, which carries urine from kidney to bladder.
• D is the bladder, which stores urine.

Final answer: C