If amount of ADH decrease in blood, micturition :

Options

A. Remains unchanged
B. Decreases
C. Increases
D. None

Answer

To solve the question regarding the effect of decreased ADH (anti-diuretic hormone) on micturition, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of ADH**:
- ADH, also known as vasopressin, is a hormone produced by the pituitary gland. Its primary function is to regulate water balance in the body by promoting water reabsorption in the kidneys.

**Hint**: Remember that ADH helps the body retain water; less ADH means less water retention.

2. **Effect of Decreased ADH**:
- When the amount of ADH in the blood decreases, the kidneys will reabsorb less water. This leads to a higher volume of water being excreted in the urine.

**Hint**: Think about what happens when the body doesn’t retain water; the urine becomes more diluted and more urine is produced.

3. **Understanding Micturition**:
- Micturition is the process of expelling urine from the bladder. If more urine is produced due to decreased water reabsorption, the frequency of micturition will increase.

**Hint**: Consider how increased urine production affects the need to urinate.

4. **Conclusion**:
- Since less ADH leads to more urine being produced, the process of micturition will increase. Therefore, the correct answer to the question is that micturition will increase.

### Final Answer:
- If the amount of ADH decreases in the blood, micturition will **increase**.