The structural and functional unit of kidney is called

Options

A. uriniferous tubule
B. renal pyramid
C. renal tubule
D. renal medulla

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the structural and functional unit of the kidney.

2. **Identifying the Options**: The options provided are:
- Uriniferous tubule
- Renal pyramid
- Renal tubule
- Renal medulla

3. **Defining the Kidney's Role**: The kidney is a vital organ in the excretory system responsible for filtering blood and producing urine.

4. **Identifying the Structural and Functional Unit**: The kidney's structural and functional unit is known as the nephron. The nephron is also referred to as the uriniferous tubule.

5. **Components of the Nephron**: The nephron consists of:
- **Glomerulus**: A network of capillaries that filters blood.
- **Bowman's Capsule**: A cup-shaped structure that surrounds the glomerulus.
- **Renal Tubule**: This includes:
- Proximal Convoluted Tubule (PCT)
- Loop of Henle
- Distal Convoluted Tubule (DCT)
- Collecting Duct

6. **Conclusion**: Therefore, the correct answer to the question is that the structural and functional unit of the kidney is called the **Uriniferous Tubule** or **Nephron**.

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