Which of the following is incorrect match about human excretory system?

Options

A. Columns of Bertini : extension of cortex in between the renal pyramids.
B. Renal corpuscles : Bowman's capsule and glomerulus.
C. Cortical nephrons : Vasa recta is absent or highly reduced .
D. Podocytes : Cuboidal epithelium of Bowman's capsule .

Answer

To determine which of the given matches about the human excretory system is incorrect, we will analyze each option step by step.

### Step 1: Analyze the First Option - Columns of Bertini
- **Description**: Columns of Bertini are extensions of the cortex that are located between the renal pyramids.
- **Explanation**: This statement is correct. The columns of Bertini (or renal columns) are indeed the areas of cortical tissue that extend between the medullary pyramids in the kidney.

### Step 2: Analyze the Second Option - Renal Corpuscle
- **Description**: The renal corpuscle consists of Bowman’s capsule and the glomerulus.
- **Explanation**: This statement is also correct. The renal corpuscle is the functional unit of the nephron, comprising Bowman’s capsule (the cup-shaped structure) that encases the glomerulus (a network of capillaries).

### Step 3: Analyze the Third Option - Types of Nephrons
- **Description**: Cortical nephrons have a reduced or absent vasa recta.
- **Explanation**: This statement is correct. Cortical nephrons are primarily located in the cortex of the kidney and typically do not have a vasa recta, which is more prominent in juxtamedullary nephrons.

### Step 4: Analyze the Fourth Option - Podocytes
- **Description**: Podocytes are described as cuboidal epithelium of Bowman’s capsule.
- **Explanation**: This statement is incorrect. Podocytes are specialized cells that have foot-like processes forming filtration slits; they are not cuboidal epithelium. The epithelium of Bowman’s capsule is actually made up of simple squamous epithelium, not cuboidal.

### Conclusion
The incorrect match about the human excretory system is the fourth option, which describes podocytes incorrectly.

### Final Answer
The incorrect match is: **Podocyte, cuboidal epithelium of Bowman capsule.**

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