Inner zone of kidney is known as

Answer

**Step-by-Step Solution:**

1. **Understanding Kidney Structure**: The kidney is divided into two main regions: the outer region and the inner region.

2. **Identifying the Outer Zone**: The outer zone of the kidney is known as the cortex. This area contains structures such as the Bowman's capsule and glomerulus.

3. **Identifying the Inner Zone**: The inner zone of the kidney is known as the medulla.

4. **Features of the Medulla**: The medulla contains conical structures called medullary pyramids, which are important for the kidney's function.

5. **Conclusion**: Therefore, the inner zone of the kidney is referred to as the medulla.

**Final Answer**: The inner zone of the kidney is known as the medulla.

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