Translations:Adventist Youth Honors Answer Book/Health and Science/Bones, Muscles, and Movement/18/en

8. Name and describe six types of freely movable joints. Be able to locate an example of each of these in your body.

1. Ball and Socket joints can be found in the hip. These joints allow for movement in many directions.
2. Ellipsoid joints can be found in the knee. When the knee is extended, it does not allow rotation. When it is flexed, it allows for limited rotation.
3. Saddle joints can be found in the fingers and thumbs.
4. Hinge joints can be found in the elbow between the humerus and the ulna. A hinge joint works just like a door hinge, allowing motion in only one direction.
5. Pivot joints can also be found in the elbow between the ulna and the radius. This type of joint allows one bone to rotate about the other.
6. Gliding joints can be found between the carpals in the wrists. These joints allow limited movement between the bones as one glides past the other.