Which gland secretion is under nervous control?

Options

A. Adrenal cortex
B. Anterior pituitary
C. Posterior pituitary
D. Pineal body

Answer

To determine which gland secretion is under nervous control, we can analyze the options provided.

### Step-by-Step Solution:

1. **Identify the Glands**: The question asks about gland secretions under nervous control. We have the following options:
- Adrenal Cortex
- Anterior Pituitary
- Posterior Pituitary
- Pineal Body

2. **Examine the Adrenal Cortex**:
- The adrenal cortex secretes hormones like cortisol and aldosterone.
- These hormones are primarily regulated by hormonal signals from the pituitary gland, not directly by the nervous system.
- **Conclusion**: The adrenal cortex is not under nervous control.

3. **Examine the Anterior Pituitary**:
- The anterior pituitary releases several hormones (e.g., LH, FSH, prolactin).
- Its secretion is primarily regulated by releasing and inhibiting hormones from the hypothalamus, which are hormonal signals rather than direct nervous control.
- **Conclusion**: The anterior pituitary is not under nervous control.

4. **Examine the Posterior Pituitary**:
- The posterior pituitary releases hormones such as oxytocin and vasopressin (ADH).
- It is directly connected to the hypothalamus through axonal projections, meaning its secretion is directly controlled by nervous signals from the hypothalamus.
- **Conclusion**: The posterior pituitary is under nervous control.

5. **Examine the Pineal Body**:
- The pineal gland secretes melatonin, which regulates sleep patterns.
- Its secretion is influenced by light exposure and is not directly under nervous control.
- **Conclusion**: The pineal body is not under nervous control.

### Final Answer:
The gland secretion that is under nervous control is the **Posterior Pituitary**.

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