Select the type of gland with its appropriate example.

Options

A. An adrenal gland is an endocrine gland
B. Mammary gland is an apocrine gland
C. The thymus gland is an heterocrine gland
D. Sebaceous gland is an endocrine gland

Answer

To solve the question of selecting the type of gland with its appropriate example, we will analyze each option provided and determine if the gland type matches its example correctly.

### Step-by-Step Solution:

1. **Understanding Gland Types**:
- **Endocrine Glands**: These glands secrete hormones directly into the bloodstream. Examples include the adrenal gland, thyroid gland, and pituitary gland.
- **Exocrine Glands**: These glands secrete their products through ducts to the outside of the body or into a body cavity. Examples include sweat glands, salivary glands, and sebaceous glands.
- **Apocrine Glands**: A type of exocrine gland that releases a portion of its cell along with the secretion. An example is mammary glands.
- **Heterocrine Glands**: These glands have both endocrine and exocrine functions. The pancreas is a classic example.

2. **Analyzing Each Option**:
- **Option 1**: Adrenal gland is an endocrine gland.
- **Analysis**: Correct. The adrenal glands are indeed endocrine glands.
- **Option 2**: Mammary gland is an apocrine gland.
- **Analysis**: Correct. Mammary glands are classified as apocrine glands.
- **Option 3**: Thymus gland is a heterocrine gland.
- **Analysis**: Incorrect. The thymus gland is primarily an endocrine gland, while the pancreas is the heterocrine gland.
- **Option 4**: Sebaceous gland is an endocrine gland.
- **Analysis**: Incorrect. Sebaceous glands are exocrine glands that secrete sebum.

3. **Conclusion**:
- The only correct match from the options provided is **Option 2**: Mammary gland is an apocrine gland.

### Final Answer:
The correct type of gland with its appropriate example is: **Mammary gland is an apocrine gland**.