Parts of nephron

Options

A. Glomerulus and Renal tubule
B. Bowman's capsule and Renal tubule
C. Glomerulus + Renal corpuscle
D. None

Answer

To answer the question about the parts of the nephron, we can break it down step by step.

### Step-by-Step Solution:

1. **Understanding the Nephron**: The nephron is the functional unit of the kidney responsible for the filtration of blood and the formation of urine. It consists of several key components.

2. **Identifying the Parts of the Nephron**:
- **Glomerulus**: This is a tiny, ball-shaped structure made up of a network of capillaries. It plays a crucial role in filtering blood to form urine.
- **Renal Tubule**: The renal tubule is divided into three main parts:
- **Proximal Convoluted Tubule (PCT)**: This is the first segment of the renal tubule where most of the reabsorption of water, ions, and nutrients occurs.
- **Loop of Henle**: This section of the nephron dips into the medulla of the kidney and is involved in the concentration of urine.
- **Distal Convoluted Tubule (DCT)**: This is the last segment of the renal tubule where further reabsorption and secretion occur.

3. **Evaluating the Options**:
- **Option 1**: Glomerulus and renal tubule - This option is correct as both components are parts of the nephron.
- **Option 2**: Glomerulus plus the renal corpuscle - This option is incorrect because the renal corpuscle includes the glomerulus and Bowman's capsule, but it is not a part of the nephron by itself.
- **Option 3**: None - This option is incorrect as there are valid parts of the nephron listed in the first option.

4. **Conclusion**: The correct answer is the first option, which includes both the glomerulus and the renal tubule as parts of the nephron.

### Final Answer:
The parts of the nephron include:
- Glomerulus
- Renal Tubule (which consists of Proximal Convoluted Tubule, Loop of Henle, and Distal Convoluted Tubule)