ANP 1106 Lecture Notes - Lecture 4: Pubic Symphysis, Synovial Fluid, Joint Capsule

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: William Staines

Document Summary

Intro: a point where 2 or more bones meet, classification. Seams found only in the bones of the skull. Cord (ligament) or sheet (interosseous membranes) of fibrous ct. Sac lined with synovial membrane and containing a thin film of synovial fluid. Found where ligaments, muscles, skin, or muscle tendons overlie and rub against bone. Shape of articular surfaces of many joints don"t contribute to stability. Deep ball and socket joints have very good stability. Ligaments can only stretch around 6% of length before they break. A. 3. completely torn ligaments require surgery: cartilage injuries. B. 2. cartilage has no blood supply, so pieces breakoff and interfere with joint function: dislocations. Bones forces out of their normal positions at a joint. B. 1. moving an appendage in a circle without rotation: protraction. A. 3. ex: carpal joints, tarsal joints: hinge joint. Ex: between atlas and dens of atlas: condylar joint. Similar to condylar, but saddle shape permits more freedom of movement: ball-and-socket joints.