An amazing 3d exploration into the skeletal system. Test your knowledge of 140 bones and landmarks with our Speed Quiz in 3D (with audio), or expand your knowledge with the reference section, nine 3D models, 12 Diagrams, hundreds of images of real bones, plus video that discusses the skeletal system. SPEED QUIZ 3D: Featuring 140 bones and landmark locations, plus an audio option that speaks the correct pronunciation of each structure as the quiz progresses. The quiz is randomized, and you can choose from a half quiz (70 questions), the full quiz (140 questions), or practice mode where you practice 10 questions at a time on an area you need help with. REFERENCE MODE: Choose the structure that you want to see, then view written comments, listen to the correct pronunciation, view diagrams of the structure, and see it rotating in 3D that you control, plus images of the real bone! DIAGRAMS: 12 pages covering the entire body. Each diagram is high resolution and can be zoomed in for detail. 3D MODELS: Nine 3D models which you control. Each model has stops along the rotation that are labeled, so you can get a better sense of what you are viewing. Includes the ankle, wrist, cranium, torso, elbow, knee, vertebrae, pelvis and sacrum. VIDEO: Learn the basics of the skeletal system in this high quality 10-minute video.