1. How many bones did your model need? How many muscles did it need?
2. How were your pretend muscles similar to real muscles? Different?
3. What changes occur to the real human body to make them pull on bones.
4. What would happen if the ligaments of the models were overstrectched or torn? How would it affect the way the models could operate?
1. We needed two bones for the elbow, the Humerus and the Ulna and Radius as the other. (Even though the Ulna and Radius are two separate bones, Mr. Solarz told us to use it as one. We needed two muscles as well, the Tricep and the Bicep.
2. The Tricep and Bicep are similar to the model that we created because they do the same things that real muscles do. The Bicep pulls the Radius and Ulna bones up so that they bend. Then the Tricep pulls the bone down. The difference is that our model is probably not as accurate as a real elbow, and that our Bicep and Tricep are made out of balloons.
3. The muscles flex and release so that you can bend and straighten your elbow and other parts of your body that have hinge joints in them. Like the knee for example. It flexes (bends) and then it releases (straightens).
4. If the ligaments were torn, then the elbow couldn't bend because there wouldn't be anything connecting the bones to the muscles. Then, the elbow wouldn't be able to flex or sraighten.