Which of the following is not a structure of kidney:
Correct answer: D. Urethra
- A. Cortex
- B. Medulla
- C. Pelvis
- D. Urethra
Explanation
Urethra is not a structure of the kidney. The urethra is part of the urinary system, but it is not located within the kidney. It is a tube that carries urine from the bladder to the outside of the body during urination.
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About Homeostasis
Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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