The entry of food into the larynx is prevented by :

Options

A. A cartilaginous flap
B. The glottis
C. The pharynx
D. The foodpipe

Answer

To solve the question regarding how the entry of food into the larynx is prevented, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Anatomy**:
- The larynx is part of the respiratory system and is commonly referred to as the voice box. It is located above the trachea (windpipe) and is involved in breathing and sound production.
- The esophagus is the tube that carries food from the mouth to the stomach.

2. **Identifying the Problem**:
- The question asks how the entry of food into the larynx is prevented. Since the larynx is connected to the trachea, it is crucial to have a mechanism that prevents food from entering this airway.

3. **Identifying the Structure Involved**:
- There is a specific structure known as the **epiglottis**. The epiglottis is a flap of cartilage located at the root of the tongue.

4. **Function of the Epiglottis**:
- When we swallow, the epiglottis folds down over the larynx. This action prevents food and liquids from entering the larynx and directs them into the esophagus instead.

5. **Conclusion**:
- Therefore, the structure that prevents the entry of food into the larynx is the **epiglottis**.

### Final Answer:
The entry of food into the larynx is prevented by the **epiglottis**.

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