In human anatomy, which kidney typically lies lower in the abdominal cavity, and why?

In the kidney, the renal papillae drain directly into which structure?

In the urinary system, which organ is primarily responsible for filtering the blood to form urine?

In the urinary system, which organ primarily filters blood to form urine?

Which structure of the kidney directly drains urine into the ureter?

In the context of the kidneys, what is another term used for renal calculi?

In kidney anatomy, what is a renal papilla?

In the urinary system, which organ is primarily responsible for filtering the blood to form urine?