Final answer:
The tissue that keeps the kidney in its normal position is the renal capsule, which is the innermost layer of the three protective layers surrounding the kidneys.
Step-by-step explanation:
The tissue covering of the kidney that keeps it in its normal position is known as the renal capsule. The kidneys are externally surrounded by three layers for protection and stability: the renal fascia, the perirenal fat capsule, and the renal capsule. The renal capsule is the innermost layer that directly covers the kidney. Internally, the kidney can be divided into three regions: the renal cortex (outer layer), the renal medulla (middle layer), and the renal pelvis (innermost area).
The renal capsule acts as a tough protective layer, while the perirenal fat capsule provides cushioning and insulation, and the renal fascia helps anchor the kidney within the abdominal cavity.