Bowman's capsule, loop of Henle and alveoli of lungs share one common character. They are :

Options

A. All ciliated
B. Lined by pavement epithelium
C. All secretory
D. All stratified

Answer

To solve the question regarding the common character shared by Bowman's capsule, loop of Henle, and alveoli of lungs, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structures**:
- Bowman's capsule is a part of the nephron in the kidney.
- The loop of Henle is also part of the nephron, involved in the concentration of urine.
- Alveoli are tiny air sacs in the lungs where gas exchange occurs.

2. **Analyze the Options**:
- The options provided are:
1. All ciliated
2. Lined by pavement epithelium
3. All secretory
4. All stratified

3. **Evaluate Each Option**:
- **Option 1 (All ciliated)**: Ciliated epithelium is found in structures like the respiratory tract, but Bowman's capsule and the loop of Henle do not have ciliated cells.
- **Option 2 (Lined by pavement epithelium)**: This type of epithelium consists of flattened cells, which is characteristic of the lining of Bowman's capsule, the loop of Henle, and alveoli.
- **Option 3 (All secretory)**: Secretory cells are found in glands, but Bowman's capsule and the loop of Henle are not primarily secretory structures.
- **Option 4 (All stratified)**: Stratified epithelium is found in areas like the skin and esophagus, not in the structures mentioned.

4. **Conclusion**:
- The common character shared by Bowman's capsule, loop of Henle, and alveoli of lungs is that they are all lined by pavement epithelium (simple squamous epithelium). Therefore, the correct answer is **Option 2**.

### Final Answer:
Bowman's capsule, loop of Henle, and alveoli of lungs share the common character of being lined by **pavement epithelium**.

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