The point at which renal artery and renal vein enter the kidney is known as:
Correct answer: D. Hilum
- A. Pelvis
- B. Cortex
- C. Medulla
- D. Hilum
Explanation
The correct answer is hilum. The hilum is the recessed central fissure where the kidney's blood vessels, nerves, and ureter pass through. It serves as the entry and exit point for the renal artery and vein, making it crucial for kidney function. The renal pelvis, cortex, and medulla are parts of the kidney involved in other processes such as filtration and urine concentration but are not associated with the entry or exit of blood vessels.
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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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