Kinesiology 2241A/B Lecture Notes - Lecture 4: Synovial Fluid, Hyaline Cartilage, Joint Capsule

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2241A/B
• Professor: Paul Jenkins

Document Summary

Articulations are places were two or more bones meet. These articulations can be classified by their structure and the motion that they allow. If there(cid:859)s slidi(cid:374)g there fri(cid:272)tio(cid:374) (cid:449)hi(cid:272)h is (cid:271)ad: a good example are the knees or hips or elbows, ligaments join bone to bone. Joint space is full of synovial fluid that lubricates and nourishes the cartilage. Joint capsule is a watertight enclosure on the joint that keeps the synovial fluid in: ligament attach bone to bone, meniscus increases the surface area so that it decreases the pressure. 3 linear degress of freedom but you can also rotate them so it becomes 6. When you connect 2 bones you have to remove on degree of freedom. The elbow has 1 degree of freedom. Synathrodial you have 0 degrees of freedom. Their material and structure is very similar. Stress is the a(cid:373)ou(cid:374)t of (cid:858)load(cid:859) in the structure. Strai(cid:374) is the a(cid:373)ou(cid:374)t of (cid:858)le(cid:374)gthe(cid:374)i(cid:374)g(cid:859) that occurs with the load.