🔬general biology i review

Perirenal fat capsule

Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025

Definition

The perirenal fat capsule is a protective layer of adipose tissue surrounding the kidneys. It helps cushion and insulate the kidneys, maintaining their position within the abdominal cavity.

5 Must Know Facts For Your Next Test

  1. The perirenal fat capsule provides mechanical protection to the kidneys from external shock and trauma.
  2. It plays a role in thermoregulation, helping to maintain optimal temperature for kidney function.
  3. The perirenal fat capsule is located between the renal fascia and the renal capsule.
  4. Excessive or insufficient perirenal fat can impact kidney health and function.
  5. In conditions such as obesity, an increase in perirenal fat may contribute to increased pressure on the kidneys.
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