Which of the following is the last structure that urine passes through during its excretion from body:
Correct answer: B. Urethra
- A. Distal tubule
- B. Urethra
- C. Urinary bladder
- D. Ureter
Explanation
The urethra is the final pathway for urine to leave the body. It is a tube that connects the urinary bladder to an external opening, allowing urine to be eliminated from the body during urination. Therefore, option b, "Urethra," is the correct choice for the last structure that urine passes through during its excretion from the body.
This question appeared on the KMU Centralized Admission Test 2022 paper, which you can sit online with every answer explained.
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About Kidney and Urinary System
The kidney and urinary system remove nitrogenous wastes, regulate water and ion balance, and help maintain blood pH through filtration, selective reabsorption and secretion. Questions cover nephron structure, ultrafiltration, the loop of Henle, collecting ducts, urine formation and the roles of ADH and aldosterone, while distinguishing excretion from egestion.
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