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Home › Health › Anatomy › Larynx

Larynx





The larynx is a triangular structure made primarily of cartilage, muscles, and ligaments. It is located between the pharynx and the trachea.

Functions of the larynx:

  • acts as a passageway for air during breathing;
  • produces sound during speech;
  • prevents food and other foreign substances from entering the breathing structures.

Structures of the larynx:

  • The thyroid cartilage is the largest portion of the larynx, consisting of a tough hyaline cartilage protruding in the front of the neck. This structure is larger in men and is often referred to as the Adam’s apple.
  • The epiglottis is another portion of the larynx, located at the top. It is composed of elastic cartilage and extends from the larynx toward the tongue. It acts as a flap to keep food and liquid from entering the larynx.
  • The vocal cords are contained within the larynx. They consist of folds of tissue made up of muscle and elastic ligaments covered by a mucous membrane and stretch across the upper part of the larynx. The glottisis the space between the vocal cords. There are two types of vocal cords:
    • False vocal cords do not produce sound. Instead, these muscle fibers help to close the airway during swallowing.
    • True vocal cords produce sound when air, flowing from the lungs, causes them to vibrate.




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