The pharynx is divided into three parts. Which among the following is not a part of pharynx?

Options

A. Nasopharynx
B. Broncho Pharynx
C. Oropharynx
D. Laryngopharynx

Answer

### Step-by-Step Solution:

1. **Understanding the Pharynx**: The pharynx is a muscular tube that connects the nasal cavity and mouth to the esophagus and larynx. It plays a crucial role in both the respiratory and digestive systems.

2. **Identifying the Parts of the Pharynx**: The pharynx is divided into three main parts:
- **Nasopharynx**: This is the uppermost part of the pharynx, located behind the nasal cavity. It primarily serves as a passageway for air.
- **Oropharynx**: This is the middle part of the pharynx, located behind the oral cavity. It serves as a passageway for both air and food.
- **Laryngopharynx**: This is the lowest part of the pharynx, located behind the larynx. It also serves as a passageway for both air and food.

3. **Analyzing the Options**: The question provides four options:
- A) Nasopharynx
- B) Bronchopharynx
- C) Oropharynx
- D) Laryngopharynx

4. **Identifying the Incorrect Option**:
- **Nasopharynx**, **Oropharynx**, and **Laryngopharynx** are all recognized parts of the pharynx.
- **Bronchopharynx** is not a recognized part of the pharynx. Instead, it is a term that may refer to the area of the bronchial tree or the region where the bronchi enter the lungs.

5. **Conclusion**: The part that is not a part of the pharynx is **Bronchopharynx** (Option B).

### Final Answer:
**B) Bronchopharynx is not a part of the pharynx.**

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