Health Sciences 2300A/B Lecture Notes - Lecture 3: Annular Ligament Of Radius, Shoulder Joint, Synovial Membrane
15 Jan 2019
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Document Summary
Functional classification: synarthroses: sutures in the skull, amphiarthroses: shoulder joint, costal cartilage in the ribs that lift the rib cage when we breathe, diarthroses: found in appendicular limbs. Synovial joints: have a joint cavity, contains hyaline, allow movement. Joint cavity/synovial cavity: created by the fibrous capsule (continuous with the two bones, contains synovial fluid; allows the joint to be movable. Inside the capsule is very glossy because of the membranous texture: synovial membrane. There is usually a disc in the cavity in places where a lot of weight is applied. Bursae & tendon sheath: found anywhere where structures rub together. Plane joint: found when two flat ends of a bone are articulating with one another, can move across all three axes (forward-backward, side-side (abduction & adduction), twist) Ball & socket joint: rounded end of the bone fitting into a pocket part of another bone, can move across all three axes.
