Vasopressin is synthesized by

Options

A. Neurohypophysis
B. Gland cells of thermostat centre
C. Neurosecretory cells of hypothalamus
D. Neurosecretory cells of epithalamus

Answer

### Step-by-Step Solution:

1. **Understanding Vasopressin**:
- Vasopressin, also known as Antidiuretic Hormone (ADH), is a hormone that plays a crucial role in regulating water balance in the body.

2. **Identifying the Source**:
- Vasopressin is synthesized in the body, and it is important to identify where this synthesis occurs.

3. **Locating the Synthesis**:
- The synthesis of Vasopressin takes place in the hypothalamus, which is a part of the brain.

4. **Transport Mechanism**:
- After being synthesized in the hypothalamus, Vasopressin is transported to the neurohypophysis (posterior pituitary gland).

5. **Secretion**:
- Once it reaches the neurohypophysis, Vasopressin is secreted into the bloodstream.

6. **Conclusion**:
- Therefore, the correct answer to the question "Vasopressin is synthesized by" is the **Neurosecretory cells of the hypothalamus**.

### Final Answer:
- **Vasopressin is synthesized by Neurosecretory cells of the hypothalamus.**

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