The inner surface of kidney has a deep notch called
Correct answer: B. Hilum
- A. Renal pelvis
- B. Hilum
- C. Medulla
- D. Pyramid
Explanation
Option B is correct.The hilum is the indentation on the medial side of the kidney through which the renal artery enters and the renal vein and ureter exit. It serves as the entry and exit point for vessels and nerves. The other options do not describe a notch: the Renal Pelvis is a cavity, the Medulla is a tissue layer, and the Pyramid is a structure within the medulla.
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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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