Which of the following statements are false?
(i). Outer cortex and inner medulla are the two zones in kidney.
(ii). Medulla is divided into few renal pyramids.
(iii). Pyramid projects into calyx.
(iv). Inward extension of cortex between the pyramids is called renal column of bertini.

Options

A. (i) and (iv)
B. (ii) and (iv)
C. (ii) and (iii)
D. None of these

Answer

To determine which statements are false regarding the kidney's structure, let's analyze each statement step by step:

1. **Statement (i)**: "Outer cortex and inner medulla are the two zones in kidney."
- **Analysis**: The kidney is indeed divided into two main regions: the outer region known as the cortex and the inner region known as the medulla. Therefore, this statement is **true**.

2. **Statement (ii)**: "Medulla is divided into few renal pyramids."
- **Analysis**: The medulla of the kidney is divided into several conical structures called renal pyramids. Hence, this statement is also **true**.

3. **Statement (iii)**: "Pyramid projects into calyx."
- **Analysis**: The apex of each renal pyramid, known as the renal papilla, does indeed project into the calyx of the kidney. This statement is **true**.

4. **Statement (iv)**: "Inward extension of cortex between the pyramids is called renal column of Bertini."
- **Analysis**: The inward extensions of the cortex that are located between the renal pyramids are indeed referred to as renal columns, but they are not specifically called "renal column of Bertini." The correct term is simply "renal columns." Therefore, this statement is **false**.

### Conclusion:
- The only false statement among the options provided is statement (iv).

### Final Answer:
- The false statement is: **(iv)**.

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