Human Anatomy

Laryngeal cartilage

A critical structure that provides support and shape to the larynx, which plays a vital role in voice production and airway protection.

The laryngeal cartilages are a group of cartilages that form the structure of the larynx or voice box. These cartilages are composed of elastic or hyaline cartilage, allowing them to maintain flexibility while providing structural support. The laryngeal cartilage includes several different types, such as the thyroid, cricoid, and epiglottic cartilages, each playing a unique role in the function of the larynx.

Terminologia Anatomica

cartilago-laryngea

System

Respiratory system

Function

The primary function of laryngeal cartilage is to maintain the shape and integrity of the larynx, which is essential for producing sound and protecting the airway. The thyroid cartilage, which is the largest, forms the prominent 'Adam's apple' and provides an attachment point for vocal cords. The cricoid cartilage, situated below the thyroid, serves as a complete ring that supports the airway. The epiglottic cartilage plays a crucial role during swallowing, acting as a flap that covers the trachea to prevent food and liquids from entering the lungs. This coordinated movement is essential for proper respiration and phonation, ensuring effective communication and protection of the airway.

Location

Laryngeal cartilage is located in the neck, forming the structure of the larynx. The larynx itself sits at the anterior of the neck, situated between the base of the tongue and the trachea, roughly at the level of the fourth to sixth cervical vertebrae. The thyroid cartilage is positioned on the front of the larynx, while the cricoid cartilage can be found directly beneath it. The epiglottic cartilage is situated behind the root of the tongue and folds downward to close off the trachea when swallowing, effectively presenting a complex and dynamic structure that is pivotal for both voice production and airway management.

Did You Know?

The laryngeal cartilages are the only cartilages in the body that are involved in sound production.
Vocal cords are attached to the thyroid cartilage, and their tension determines the pitch of the voice.
The cricoid cartilage is the only complete ring of cartilage in the airway, providing essential structural support.
The laryngeal cartilages can vary in size and shape among individuals, influencing personal vocal characteristics.