Select the correct statement.

Options

A. stimulating hormones produced by adenohyphophysis control the activities of other glands
B. adenohypophysis does not produce any hormones
C. Diabetes insipidus is characterised by hypertonic urine, diuresis and polydipsia
D. All endocrine glands store their hormones in glandular space before secreting them into blood supply

Answer

To solve the question "Select the correct statement," we need to evaluate each of the provided statements regarding the endocrine system and the pituitary gland.

### Step-by-Step Solution:

1. **Evaluate Statement 1:**
- The statement claims that the stimulating hormones produced by the adenohypophysis control the activities of other glands.
- The adenohypophysis (anterior lobe of the pituitary gland) does produce several hormones (like FSH, LH, ACTH, etc.) that indeed stimulate other endocrine glands.
- **Conclusion:** This statement is true.

2. **Evaluate Statement 2:**
- This statement says that the adenohypophysis does not produce any hormones.
- As established, the adenohypophysis does produce hormones, including those that stimulate other glands.
- **Conclusion:** This statement is false.

3. **Evaluate Statement 3:**
- The statement mentions that diabetes insipidus is characterized by hypertonic urine, diuresis, and polydipsia.
- Diabetes insipidus is actually characterized by excessive urination (diuresis) and excessive thirst (polydipsia) due to a deficiency of ADH (antidiuretic hormone), but it does not lead to hypertonic urine. Instead, the urine is typically dilute.
- **Conclusion:** This statement is false.

4. **Evaluate Statement 4:**
- This statement claims that all endocrine glands store their hormones in the glandular space before secreting them into the blood supply.
- Most endocrine glands do not store hormones; they secrete them directly into the bloodstream. The thyroid gland is an exception, as it stores thyroxin in the colloidal space of the follicles.
- **Conclusion:** This statement is false.

### Final Answer:
The only correct statement is **Statement 1**: "The stimulating hormones produced by the adenohypophysis control the activities of other glands."

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