Describe the structure of a human kidney with the help of a labelled diagram.

Explanation

### Step-by-Step Text Solution for the Structure of a Human Kidney

1. **Introduction to the Kidney**:
- The human kidney is a vital organ responsible for filtering blood, removing waste, and regulating fluid balance. It typically measures about 10 to 12 centimeters in length, 5 to 7 centimeters in width, and 2 to 3 centimeters in thickness. The kidney has a characteristic bean-like shape.

2. **Outer Structure**:
- The kidney is encased in a protective layer known as the **renal capsule**, which is a fibrous and thick membrane that shields the kidney from external damage.

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