MSH is secreted by

Options

A. anterior lobe of pituitary
B. middle lbe of pituitary
C. posterior lobe of pituitary
D. endostyle.

Explanation

**Step-by-Step Solution:**

1. **Understanding MSH**: Melanocyte Stimulating Hormone (MSH) is a hormone that plays a crucial role in skin pigmentation and the body's response to UV rays. It also has an influence on appetite.

2. **Identifying the Source**: The question asks where MSH is secreted from. To answer this, we need to look at the different lobes of the pituitary gland.

3. **Reviewing Pituitary Gland Lobes**:
- The **anterior lobe** of the pituitary secretes several hormones, including TSH (Thyroid Stimulating Hormone), growth hormone, and prolactin.
- The **posterior lobe** secretes hormones such as vasopressin (ADH) and oxytocin.
- The **middle lobe** of the pituitary gland is known to secrete MSH.

4. **Evaluating the Options**:
- Option 1: Anterior lobe of pituitary - does not secrete MSH.
- Option 2: Middle lobe of pituitary - known to secrete MSH.
- Option 3: Posterior lobe of pituitary - does not secrete MSH.
- Option 4: Endostyle - not related to MSH secretion.

5. **Conclusion**: Based on the information gathered, the correct answer is that MSH is secreted by the middle lobe of the pituitary gland.

**Final Answer**: MSH is secreted by the middle lobe of the pituitary gland (Option 2).

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