Emergency Medical Technician (EMT) Intermediate Practice Exam

Which statement accurately describes the cricoid cartilage?

1. It is the largest cartilage in the larynx

2. It is the only complete circular cartilage of the trachea

3. It is shaped like a leaf

4. It is located at the base of the skull

The correct answer is: It is the only complete circular cartilage of the trachea

The correct answer highlights the unique structure of the cricoid cartilage, which is indeed the only complete circular cartilage found in the trachea. This characteristic is important for understanding the anatomy and function of the airway. The cricoid cartilage forms a complete ring around the trachea, providing support and keeping the airway open. This differentiates it from the other cartilages in the larynx, which have different shapes and functions. Understanding the role of cricoid cartilage in airway management is crucial for EMTs and other medical professionals, especially in scenarios involving intubation or treating conditions that affect airway patency. This knowledge is fundamental to ensuring proper techniques are employed during emergency situations where the airway may become compromised. In contrast, the other statements do not correctly describe the cricoid cartilage: it is not the largest cartilage of the larynx (that distinction belongs to the thyroid cartilage), it does not have a leaf-like shape (which is associated with the epiglottis), and it is not located at the base of the skull (which is where the occipital bone is located). Thus, the accurate description of the cricoid cartilage as the only complete circular cartilage of the trachea emphasizes its vital role