Kinesiology 2241A/B Lecture Notes - Lecture 3: Rigid Body, Carpal Bones, Shoulder Joint

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2241A/B
• Professor: Thomas Richard Jenkyn

Document Summary

Type of articulation: articulations are places were two or more bones meet. These articulations can be classified by their structure and the motion that they allow: there are three general types, synarthrodial, these are "immovable" joints or places were two bones "fuse" together, exc. Sutures between the plates of the skill: amphiarthrodial, these are "cartilaginous" joints, connected via fibrocartilage that is flexible but allows only a small range of motion (rom, we want a little bit of motion, exc. The intervertebral discs between the vertebrae of the spine: diarthrodial, where the motion really occurs, we have sliding between bones, these are joints that allow the most forceful motions and the greatest ranges of motion. Synovial fluid between joints, articular cartilage where bones meet --> reduce friction. Ligaments join bone to bone. (limit degree of freedom: tendons join muscles to bones (make the bones move, exc. Elbow can only flex and extend: we have removed 5 degrees of freedom: exc.