When we speak muscles in the larynx bring the vocal cords together. As the air rushes from our lungs out through the larynx, the from portion of the vocal cords vibrate, producing a sound. The upper portion of our throat then modifies this sound to produce speech.

It works like this: When we talk or sing, we release controlled puffs of air from our lungs through our larynx, or voice box. When we expel air from the lungs and push it through the larynx, the vocal chords vibrate, making the sound.

The larynx or voice box serves to permit speech and allow air to pass into the lungs while blocking food and drink from entering. The larynx, or voice box, is a part of the upper respiratory tract that is a flexible tube where air passes between the back of the nose (pharynx) and the windpipe (trachea).

Introduction. The larynx serves three important functions in humans. In order of functional priority, they are protective, respiratory, and phonatory.

Other functions of the larynx include the production of sound (phonation), coughing, the Valsalva maneuver, and control of ventilation, and acting as a sensory organ.

The hyoid bone is not part of the larynx, though the larynx is suspended from the hyoid. The larynx extends vertically from the tip of the epiglottis to the inferior border of the cricoid cartilage. Its interior can be divided in supraglottis, glottis and subglottis.

What is the throat? The throat (pharynx and larynx) is a ring-like muscular tube that acts as the passageway for air, food and liquid. It is located behind the nose and mouth and connects the mouth (oral cavity) and nose to the breathing passages (trachea [windpipe] and lungs) and the esophagus (eating tube).

The larynx plays an essential role in human speech. During sound production, the vocal cords close together and vibrate as air expelled from the lungs passes between them. The false vocal cords have no role in sound production, but help close off the larynx when food is swallowed.

The larynx is our voice box. Its main job is to produce sound. It also provides a mechanism to prevent food entering the airway when we swallow.

The main difference between pharynx and larynx is that pharynx is a part of an alimentary canal, which extends from the nasal cavity and mouth to the larynx and the esophagus whereas larynx is the upper portion of the trachea. Both air and food pass through the pharynx. The wall of the larynx is made up of cartilage.

The primary function of the larynx in humans and other vertebrates is to protect the lower respiratory tract from aspirating food into the trachea while breathing. It also contains the vocal cords and functions as a voice box for producing sounds, i.e., phonation.

Anatomy, Head and Neck, Larynx – StatPearls – NCBI Bookshelf The larynx is a cartilaginous segment of the respiratory tract located in the anterior aspect of the neck. The primary function of the larynx in humans and other vertebrates is to protect the lower respiratory tract from aspirating food into the trachea while breathing.

Additionally, the larynx plays an important role in preventing food from becoming stuck in the airway. When people swallow, the epiglottis shifts downward, blocking off the trachea. 5  The food or liquid then moves to the esophagus]

It’s the inferior vocal cords that are able to draw closer together, which is essential for making sound. The opening between these structures is called the rima glottidis. Infraglottic cavity: Defined as the space below the glottis and above the trachea, this portion of the larynx starts to widen as it runs downward.