Pituicytes are under the control of

Options

A. Adenohypophysis
B. Neurohypophysis
C. Hypothalamus
D. Pineal.

Answer

To solve the question "Pituicytes are under the control of," we need to analyze the options provided and understand what pituicytes are and their relationship with other structures in the endocrine system.

### Step-by-Step Solution:

1. **Understand Pituicytes**:
- Pituicytes are specialized glial cells found in the posterior pituitary gland. They are similar to astrocytes in the central nervous system and play a supportive role.

2. **Function of Pituicytes**:
- The primary function of pituicytes is to assist in the storage and release of hormones produced by the posterior pituitary gland, specifically oxytocin and vasopressin (also known as antidiuretic hormone, ADH).

3. **Identify the Options**:
- The options given are:
- A) Adenohypophysis
- B) Neurohypophysis
- C) Hypothalamus
- D) Pineal gland

4. **Analyze Each Option**:
- **Adenohypophysis**: This is the anterior lobe of the pituitary gland, responsible for producing several hormones but does not control pituicytes. Thus, this option is incorrect.
- **Neurohypophysis**: This is the posterior lobe of the pituitary gland where pituicytes are located, but they are not under the control of this structure. Therefore, this option is also incorrect.
- **Hypothalamus**: The hypothalamus produces hormones that are transported to the posterior pituitary for storage and release. This makes it the correct answer as it directly influences the function of pituicytes.
- **Pineal gland**: This gland is involved in the secretion of melatonin and serotonin and does not control pituicytes. Hence, this option is incorrect.

5. **Conclusion**:
- Based on the analysis, the correct answer is **C) Hypothalamus**. Pituicytes are under the control of the hypothalamus, which regulates the release of hormones from the posterior pituitary.

### Final Answer:
Pituicytes are under the control of the **Hypothalamus**.