Definciency of ADH ( antidiuretic hormone ) or vasopressin will result in

Options

A. Increased volume of urine
B. Decreased volume of urine
C. Excessive secretion of urochrome
D. Change in pH from acidic to alkaline range

Answer

**Step-by-Step Solution:**

1. **Understanding ADH (Antidiuretic Hormone):** ADH, also known as vasopressin, is a hormone produced by the posterior pituitary gland. Its primary function is to regulate water balance in the body.

2. **Function of ADH:** ADH acts mainly on the kidneys, promoting the reabsorption of water from the urine back into the bloodstream. This process occurs primarily in the distal tubules and collecting ducts of the nephron.

3. **Effects of ADH Deficiency:** When there is a deficiency of ADH, the kidneys do not reabsorb enough water. This leads to an increase in the volume of urine produced.

4. **Consequences of Increased Urine Volume:** The increased urine volume results in a condition known as diabetes insipidus, characterized by excessive urination (polyuria) and increased thirst (polydipsia).

5. **Conclusion:** Therefore, the deficiency of ADH will result in an increased volume of urine.

**Final Answer:** Deficiency of ADH (antidiuretic hormone) will result in an increased volume of urine.

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