Larynx is modified portion of

Options

A. Pharynx
B. Trachea
C. Bronchus
D. Lungs

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks what the larynx is a modified portion of. This requires knowledge of the anatomy of the respiratory system.

2. **Identifying the Options**: The options provided are:
- A) Pharynx
- B) Trachea
- C) Bronchus
- D) Lungs

3. **Analyzing Each Option**:
- **Option A: Pharynx**: The larynx is located in the pharyngeal region, but it is not a modified portion of the pharynx. The pharynx is a passageway for both air and food and includes the esophagus and trachea.
- **Option B: Trachea**: The larynx is indeed a modified portion of the trachea. The trachea is the windpipe that leads to the lungs, and the larynx, often referred to as the "sound box," is situated at the top of the trachea and is responsible for sound production.
- **Option C: Bronchus**: The bronchus branches off from the trachea and leads into the lungs. The larynx is not a modified portion of the bronchus.
- **Option D: Lungs**: The lungs are the organs where gas exchange occurs, and the larynx is not a modified portion of the lungs.

4. **Conclusion**: After analyzing all options, the correct answer is **Option B: Trachea**, as the larynx is a modified portion of the trachea.

**Final Answer**: The larynx is a modified portion of the trachea.

---