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The larynx receives air from the laryngopharynx

The larynx receives air from the laryngopharynx -...

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The larynx receives air from the laryngopharynx. It consists of several pieces of  cartilage that are joined by membranes and ligaments, shown in Figure 2:  The epiglottis, the first piece of cartilage of the larynx, is a flexible flap that  covers the glottis, the upper region of the larynx, during swallowing to  prevent the entrance of food. The thyroid cartilage protects the front of the larynx. A forward projection  of this cartilage appears as the Adam's apple (anatomically known as the  laryngeal prominence). The paired arytenoid cartilages in the rear are horizontally attached to the  thyroid cartilage in the front by folds of mucous membranes. The upper 
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Unformatted text preview: vestibular folds (false vocal cords) contain muscle fibers that bring the folds together and allow the breath to be held during periods of muscular pressure on the thoracic cavity (straining while defecating or lifting a heavy object, for example). The lower vocal folds (true vocal cords) contain elastic ligaments that vibrate when skeletal muscles move them into the path of outgoing air. Various sounds, including speech, are produced in this manner. • The cricoid cartilage, the paired cuneiform cartilages, and the paired corniculate cartilages are the remaining cartilages supporting the larynx...
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