During summer season, which hormone concentration is maintained at high level

Options

A. Insulin
B. Vasopressin
C. Oxytocin
D. Corticoids

Answer

**Step-by-Step Solution:**

1. **Understanding the Summer Season Effects:**
- During the summer season, the body experiences a loss of water due to increased temperatures and sweating. This leads to a decrease in water levels in the body.

2. **Body's Response to Water Loss:**
- To compensate for the loss of water, the body needs to conserve as much water as possible. This is crucial to maintain hydration and proper physiological functions.

3. **Role of Hormones:**
- The hormone that plays a significant role in regulating water balance in the body is Antidiuretic Hormone (ADH), also known as vasopressin.

4. **Source of ADH:**
- ADH is produced in the hypothalamus and released from the posterior pituitary gland. Its secretion increases when the body is dehydrated.

5. **Mechanism of Action:**
- ADH acts primarily on the distal convoluted tubule (DCT) and collecting ducts of the nephron. It promotes the reabsorption of water back into the bloodstream, reducing urine output.

6. **Conclusion:**
- Therefore, during the summer season, the concentration of ADH (vasopressin) is maintained at a high level to help conserve water and maintain blood pressure.

**Final Answer:**
The hormone concentration that is maintained at a high level during the summer season is **ADH (vasopressin)**.

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