Function of loop of Henle is

Options

A. conservation of water
B. formation of urine
C. filtration of blood
D. passage of urine

Answer

### Step-by-Step Solution:

1. **Understanding the Loop of Henle**: The Loop of Henle is a U-shaped structure found in the nephron, which is the functional unit of the kidney. It plays a crucial role in the process of urine formation.

2. **Role in Urine Formation**: The primary function of the Loop of Henle is to facilitate the reabsorption of water and sodium chloride (NaCl) from the filtrate (the fluid that becomes urine). This process is essential for maintaining the body’s fluid and electrolyte balance.

3. **Conservation of Water**: The Loop of Henle helps in the conservation of water by allowing the kidneys to produce concentrated urine. This is particularly important in situations where the body needs to retain water, such as during dehydration.

4. **Reabsorption Process**: During the passage through the Loop of Henle, water is reabsorbed back into the bloodstream, and sodium chloride is also reabsorbed. This reabsorption is crucial for the body to retain essential nutrients and maintain homeostasis.

5. **Conclusion**: Given the options provided (conservation of water, formation of urine, filtration of blood, passage of urine), the most accurate function of the Loop of Henle is the **conservation of water**.