Florida State Paramedic Practice Exam

Which structure covers the trachea?

1. Thyroid cartilage

2. Cricoid cartilage

3. Epiglottis

4. Vocal cords

The correct answer is: Epiglottis

The epiglottis is the structure that covers the trachea during swallowing, preventing food and liquids from entering the airway. It is a flap of tissue located at the base of the tongue and acts as a protective mechanism, ensuring that the trachea remains clear for breathing while also safeguarding the esophagus during the intake of food. Understanding the role of the epiglottis is essential in the context of airway management and respiratory physiology. It helps maintain a clear airway by directing substances towards the esophagus and preventing aspiration, which can lead to serious respiratory complications. The other structures listed, while important in their own right, do not cover the trachea in the context of swallowing. The thyroid and cricoid cartilages are components of the laryngeal framework, providing support and protection for the vocal cords and the trachea but do not play a direct role in covering the trachea. The vocal cords, also known as vocal folds, are involved in sound production and the regulation of airflow but are not designed to cover the airway during swallowing.