Which of the following increases glomerular pressure ?

Options

A. Rennin
B. Angiotensin
C. Androsterone
D. Insulin

Answer

To determine which of the following options increases glomerular pressure, we will analyze each option one by one.

### Step-by-Step Solution:

1. **Understanding Glomerular Pressure**:
- Glomerular pressure is the pressure within the glomeruli of the kidneys, which is crucial for the filtration of blood to form urine. Factors that affect this pressure can influence kidney function.

2. **Analyzing Option 1: Renin**:
- Renin is an enzyme secreted by the kidneys that plays a role in the regulation of blood pressure. However, it primarily helps in the reabsorption of sodium rather than directly increasing glomerular pressure.
- **Conclusion**: This option does not increase glomerular pressure.

3. **Analyzing Option 2: Angiotensin**:
- Angiotensin is a peptide hormone that is part of the renin-angiotensin system. It causes vasoconstriction (narrowing of blood vessels), which increases blood pressure and, consequently, glomerular pressure.
- **Conclusion**: This option does increase glomerular pressure and is the correct answer.

4. **Analyzing Option 3: Androsterone**:
- Androsterone is a steroid hormone that is involved in male sexual and reproductive functions. It does not have a direct effect on glomerular pressure.
- **Conclusion**: This option does not increase glomerular pressure.

5. **Analyzing Option 4: Insulin**:
- Insulin is a hormone that regulates blood glucose levels. While it has various effects on metabolism, it does not directly influence glomerular pressure.
- **Conclusion**: This option does not increase glomerular pressure.

### Final Answer:
The option that increases glomerular pressure is **Option 2: Angiotensin**.