which is a common passage in swallowing food and breathing

Options

A. Gullet
B. Pharynx
C. Glottis
D. Larynx

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks for the common passage used for both swallowing food and breathing.

2. **Identifying the Options:**
The options provided are:
- Gullet
- Pharynx
- Glottis
- Larynx

3. **Analyzing Each Option:**
- **Gullet (Esophagus):** This is primarily a passage for food only, as it transports food from the pharynx to the stomach.
- **Pharynx:** This is a muscular tube that connects the nasal cavity and mouth to the larynx and esophagus. It serves as a common pathway for both air (breathing) and food (swallowing).
- **Glottis:** This is a part of the larynx and is involved in breathing and sound production, but not in swallowing food.
- **Larynx:** This is primarily involved in breathing and sound production, not directly in swallowing food.

4. **Conclusion:**
The pharynx is the correct answer as it serves as the common passage for both food and air. It has three regions: nasopharynx, oropharynx, and laryngopharynx, which facilitate the passage of food and air.

**Final Answer:**
The common passage for swallowing food and breathing is the **pharynx**.

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