Kinesiology 2241A/B Lecture Notes - Lecture 3: Synovial Fluid, Hyaline Cartilage, Bone

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

Document Summary

Tuberosities on occipital this is where major muscles attach. Where 2 bones come together - b/w the 2 there is fibrocartilage. Flexible, allows for sm range of motion (rom) Example: intervertebral discs b/w vertebrae of spine (b/w vertebrae) You want a little bit of movement but you don"t want them to be able to slide. Watertight enclosure on joint - keep synovial fluid in. Bind water molecules together, high protein content, low friction (synovial) Allow for the most forceful motions + greatest range of motion. 1mm-2mm thick - changes depending on what pt of joint you are on. Low metabolic activity - bad at fixing cartilage. Molecules w/in ac binds down on synovial fluid and keeps it lubricated when it needs it. Squeeze film - sucks in fluid and inflates it similar to a tire filled w/ air (all weight of car on tire w/ even weight bearing)