Which one is a apocrine gland :-

Options

A. Oil gland
B. Mammary gland
C. Goblet cell
D. Parotid gland

Answer

**Step-by-Step Solution:**

1. **Understand the Types of Glands:**
- Glands can be classified into two main categories: endocrine and exocrine. Exocrine glands secrete their products through ducts to the surface of an organ or into a cavity.

2. **Identify the Types of Exocrine Glands:**
- Exocrine glands are further classified into three types:
- **Merocrine Glands:** Secrete their products by exocytosis without losing any cellular material. Example: Salivary glands.
- **Apocrine Glands:** Secrete their products by pinching off a portion of the cell, which includes some cytoplasm. Example: Mammary glands.
- **Holocrine Glands:** Secrete their products by the entire cell disintegrating, releasing its contents. Example: Sebaceous (oil) glands.

3. **Analyze the Options Given:**
- **Oil Gland (Sebaceous Gland):** This is a holocrine gland because the whole cell disintegrates to release its secretion.
- **Membrane Gland:** This is an example of an apocrine gland, as it secretes by pinching off a part of the cell.
- **Goblet Cells:** These are merocrine glands that secrete mucus through exocytosis.
- **Parotid Glands:** These are also merocrine glands that secrete saliva through ducts.

4. **Determine the Correct Answer:**
- Based on the analysis, the only option that qualifies as an apocrine gland is the **Membrane Gland**.

5. **Conclusion:**
- Therefore, the correct answer to the question "Which one is an apocrine gland?" is **Membrane Gland**.

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