This cervical spine model, with muscles and ligaments, is perfect for educational and classroom purposes, as well as patient consultations. It is the ONLY cervical spine model in the world that presents the main muscles and the larynx. Additionally, the model also shows the spinal cord, nerve ends and various vertebral arteries. The muscles are flexible, allowing for demonstration of the damage of injuries and other impacts to the spine. Cast from an actual human skeleton, individual parts are numbered and matched to the included key. This model also includes the brain stem and muscle attachments, offering realism only rivaled by cadavers. The model is removable from the stand for closer study. 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.