Functional larynx model is 2.5x size. The epiglottis, vocal cords and arytenoid cartilage are movable in the functional larynx. Additionally the following structures of the human larynx are represented: Hyoid bone, Cricoid cartilage, Thyroid cartilage, Thyroid, Parathyroid glands. This anatomically correct human larynx is a great addition to any doctors office or classroom. The functional larynx model is on a stand.