Osteoporosis Model; Magnetic model compares osteoporotic and normal thoracic vertebrae using T11 and T12. Reproductions of sequential osteoporotic thoracic vertebrae with narrower intervertebral disc are located on the left of the stand. Two healthy vertebrae with discs are on the right side. A detailed illustration on the base depicts two 3D micro CT images obtained from bone biopsies. 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.