Pharynx opens into trachea through

Options

A. gullet
B. glottis
C. syrinx
D. alveoli

Answer

To answer the question "Pharynx opens into trachea through," we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure**: The pharynx is a part of the respiratory system that connects the nasal and oral cavities to the larynx and esophagus.

2. **Understand the Pharynx's Anatomy**: The pharynx has three parts: the nasopharynx, oropharynx, and laryngopharynx. The lowest part of the pharynx is called the laryngopharynx.

3. **Determine the Openings**: The laryngopharynx has two important openings:
- The anterior slit, which leads to the larynx and is known as the **glottis**.
- The posterior slit, which leads to the esophagus and is known as the **gullet**.

4. **Connect to the Trachea**: The glottis opens into the larynx, which then leads to the trachea. Therefore, the pharynx opens into the trachea through the glottis.

5. **Identify the Correct Option**: Based on the above understanding, the correct answer to the question is **option B: glottis**.

### Final Answer:
The pharynx opens into the trachea through the **glottis**.

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