The larynx model is divided into two halves. This medially sectioned larynx model shows: Larynx Hyoid bone Windpipe Ligaments Muscles Vessels Nerves Thyroid gland This anatomically correct human larynx is a great addition to any doctors office or classroom. The larynx model is on a stand. Now included with all 3B Scientific Anatomy models is the 3B Smart Anatomy app. This app allows users to register their 3B item to extend the warranty from 3 to 5 years plus free 1 year access to the 3B Smart Anatomy app which includes 23 Anatomy lectures, 117 interactive models and 39 quizzes.