Which of the following structure is present inside the larynx of the respiratory system?

Options

A. (1) Glottis
B. (2) Epiglottis
C. (3) Vocal cords
D. (4) Gullet

Answer

To determine which structure is present inside the larynx of the respiratory system, we will analyze the options provided: glottis, epiglottis, vocal cords, and colic.

### Step-by-Step Solution:

1. **Understanding the Larynx**: The larynx is a crucial part of the respiratory system, located in the throat. It plays a significant role in voice production and protecting the airway during swallowing.

2. **Identifying the Structures**:
- **Glottis**: This is the opening between the vocal cords and is located within the larynx. It plays a key role in phonation (voice production).
- **Epiglottis**: This is a flap-like structure that covers the glottis during swallowing to prevent food from entering the trachea. It is located above the glottis but is not inside the larynx itself.
- **Vocal Cords**: These are folds of tissue located within the larynx that vibrate to produce sound. While they are part of the larynx, they are not considered to be "inside" it in the same way the glottis is.
- **Colic**: This term generally refers to the colon or large intestine and is not related to the structures of the larynx.

3. **Conclusion**: Among the options, the glottis is the structure that is specifically identified as being inside the larynx. Therefore, the correct answer is **glottis**.

### Final Answer:
The structure present inside the larynx of the respiratory system is the **glottis**.