Organs And Structures Of Larynx

Monday, March 10th 2014. | Anatomy

Organs and Structures of Larynx

Organs and Structures of Larynx are part of the respiratory system that holds the vocal cords, which responsible for producing voice, helping us swallow and breathe. Air passes in and out of the larynx each time the body inhales or exhales.
It is is located within the anterior aspect of the neck, anterior to the inferior portion of the pharynx and superior to the trachea. 
The larynx is composed of 3 large, unpaired cartilages (cricoid, thyroid, epiglottis); 3 pairs of smaller cartilages (arytenoids, corniculate, cuneiform); and a number of intrinsic muscles. 
  • Cricoid cartilage is a ring of cartilage enveloped around the trachea. It is a strong connective tissue constituting the dorsal part of the larynx.
  • Thyroid cartilage (Adam’s apple) is the largest and uppermost of nine cartilages in the larynx, or voice box. It houses the vocal folds, commonly called the vocal cords.
  • Epiglottis is flap of cartilage located in the throat behind the tongue and in front of the larynx. The epiglottis is usually upright at rest allowing air to pass into the larynx and lungs. 
  • Arytenoid cartilages are a pair of cartilages that act as the rear attachment for the Vocal Folds. They are also connected to the muscles involved in adjusting the approximation, lengthening and tensing of the Folds.
  • Corniculate cartilages (cartilages of Santorini)are two small nodules that are made of yellow elastic cartilage. They work together in opening and closing of the glottis and help in the production of sound.
  • Cuneiform cartilages is a small rod in the ary-epiglottic fold above the corniculate cartilage  that supports the lateral aspects of the epiglottis and the vocal folds.
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