Knee model with stages of rheumatism This anatomical knee model is from HeineScientific showing a knee joint with rheumatic disease (rheumatoid arthritis). It consists a total of 3 models that represent a healthy knee joint and 2 stages of rheumatoid arthritis. The first model displays the healthy knee which is shown lengthwise. It is assembled on a white plastic base. On the bottom, there are two relief models. Each relief model shows a knee with rheumatoid arthritis during different stages of the disease. Product details: Knee model displays a healthy knee shown lengthwise 2 relief models on the base displays a knee joint in different stages of rheumatoid arthritis Approximate half life-size Dimensions: 16.5 x 11.5 x 17cm Details shown on the knee model: Femur Tibia Fibula Medial and lateral menisci Medial and lateral condyles Collateral ligaments Cruciate ligaments