Which of the following structures is responsible for transporting urine from the kidneys to the urinary bladder?

• A. Urethra
• B. Adrenal gland
• C. Renal cortex
• D. Ureter

Answer: (D)

Verified step by step guidance

1. Understand the anatomy of the urinary system: The urinary system consists of the kidneys, ureters, urinary bladder, and urethra. Each structure has a specific role in the production, transport, storage, and elimination of urine.
2. Identify the function of the ureters: The ureters are muscular tubes that connect the kidneys to the urinary bladder. Their primary role is to transport urine from the renal pelvis of each kidney to the bladder through peristaltic contractions.
3. Differentiate the ureters from other structures: The urethra is responsible for transporting urine from the bladder to the outside of the body, not from the kidneys to the bladder. The adrenal glands are endocrine organs located above the kidneys and are not involved in urine transport. The renal cortex is the outer layer of the kidney where filtration occurs, but it does not transport urine.
4. Confirm the correct answer: Based on the anatomical roles, the ureters are the structures responsible for transporting urine from the kidneys to the urinary bladder.
5. Review the pathway of urine flow: Urine is produced in the kidneys, collected in the renal pelvis, transported via the ureters to the urinary bladder, and finally expelled through the urethra during urination.