The hormones acting on mammary glands

Options

A. FSH and LH
B. Oxytocin and prolactin
C. LH,Prolactin and oxytocin
D. Vasopressin and prolactin

Answer

To answer the question regarding the hormones that act on mammary glands, we will analyze the options provided and identify the hormones that directly influence mammary gland function.

### Step-by-Step Solution:

1. **Understanding Mammary Glands**:
- Mammary glands are specialized glands in mammals responsible for the production of milk. This process is crucial for nourishing infants.

2. **Identifying Relevant Hormones**:
- The primary hormones that affect mammary glands are **prolactin** and **oxytocin**.
- **Prolactin** is responsible for the production of milk in the mammary glands.
- **Oxytocin** plays a key role in the ejection of milk from the mammary glands during breastfeeding.

3. **Analyzing the Options**:
- **Option 1**: FSH and LH - These hormones primarily stimulate the gonads (testes and ovaries) and do not act on mammary glands.
- **Option 2**: Oxytocin and Prolactin - Both hormones directly act on the mammary glands, making this option likely correct.
- **Option 3**: LH, Prolactin, and Oxytocin - While prolactin and oxytocin act on mammary glands, LH does not, so this option is incorrect.
- **Option 4**: Vasopressin - This hormone does not act on mammary glands and is involved in water retention and blood pressure regulation.

4. **Conclusion**:
- The correct answer is **Option 2: Oxytocin and Prolactin**, as both hormones have direct effects on the mammary glands.

### Final Answer:
The hormones acting on mammary glands are **Oxytocin and Prolactin**.

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