HUMAN LARYNX, FUNCTIONAL (2904) The 4 times enlargement of a larynx is ideal for lessons on speech and speech pathology. All the structures associated with the larynx are visible like the hyoid bone, cartilage. epiglottis. and muscles. The model features a drawstring which can be pulled, causing the arytenoid cartilage to pivot, to stimulate the function of the vocal cords. In addition, the epiglottis opens and closes to demonstrate swallowing. It is mounted on a base with numbered Key Card. Qty :