Arrange the following structures to represent the sequence in which urine passes through them to the external environment: (1) ureter, (2) renal pelvis, (3) calyx, (4) urinary bladder, and (5) urethra.

• A. 3, 4, 1, 5, 2
• B. 1, 2, 3, 4, 5
• C. 3, 2, 1, 4, 5
• D. 2, 4, 1, 3, 5

Answer: (C)

Verified step by step guidance

1. Begin by understanding the anatomy of the urinary system, which is responsible for the production and excretion of urine.
2. Identify the starting point of urine formation, which occurs in the kidney. The urine first collects in the calyx.
3. From the calyx, urine moves into the renal pelvis, which is a funnel-shaped structure in the kidney.
4. Next, urine travels through the ureter, a tube that connects the kidney to the urinary bladder.
5. Finally, urine is stored in the urinary bladder until it is excreted through the urethra to the external environment.