Each mammary gland consists of

Options

A. Glandular tissue and variable amount of fat
B. Glandular tissue and fibrous tissue
C. Muscular tissue and fibrous tissue
D. Only glandular tissue

Answer

**Step-by-Step Solution:**

1. **Understanding Mammary Glands**:
- Mammary glands are specialized organs in mammals responsible for producing milk. They are classified as modified sweat glands.

2. **Identifying the Components**:
- The question asks what each mammary gland consists of. The options provided include combinations of glandular tissue, fibrous tissue, muscular tissue, and the mention of fat.

3. **Analyzing Glandular Tissue**:
- All glands, including mammary glands, are primarily made up of glandular tissue. This is a correct component of mammary glands.

4. **Considering Fibrous Tissue**:
- While breasts may contain fibrous tissue, mammary glands themselves do not have fibrous tissue as a primary component. Therefore, any option that includes fibrous tissue can be eliminated.

5. **Evaluating Muscular Tissue**:
- Mammary glands do not contain muscular tissue. They are not muscles, and thus any option that includes muscular tissue can also be eliminated.

6. **Assessing the Role of Fat**:
- Fat is an important component of human milk and varies among individuals. The amount of fat present in the mammary glands can influence breast size and is not fixed, hence it is described as a variable amount of fat.

7. **Finalizing the Answer**:
- Based on the analysis, the correct answer is that each mammary gland consists of glandular tissue and a variable amount of fat.

**Conclusion**: The correct answer is **glandular tissue and variable amount of fat**.

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