Test 3 Notes.

Test 3 Notes. - Test 3 Joints Joints(articulation arthrosis...

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Unformatted text preview: Test 3 Joints Joints- (articulation, arthrosis) Arthrology- the study of joints General Points- Classification schemes used today are based upon the structure of the joints- The structure of a joint includes the connecting tissues between the neighboring bones Bones are held together by:- Synarthroses- immovable or slightly movable o Fibrous joint- held together by dense irregular connective tissue o Cartilaginous joint- cartilage involved as connecting tissue- Synovial (Diarthrosis)- movable o Synovial Cavity- Ligaments o They serve as both intrinsic or extrinsic binding structures of the joint itself Extrinsic- ACL Intrinsic- sutures, gomphosis (teeth) o Sprain Inversion and eversion o Strain Like in a sprinter, powerful movements that cause the ligaments to contract too quickly- Fibrous joints o Sutures o Gomphosis o Syndesmosis between the tibia and the fibula; will occur at the proximal and distal ends of long bones o Interosseous membrane between tibia and fibula/ radius and ulna- Cartilaginous Joints o Synchondrosis Epiphysial plate- Synovial Joints o Range from slightly movable to the most mobile joints of the body Carpal bones being slightly movable and the glenohumeral joint being freely movable o Synovial fluid- can have too much or too little Elbow example o Bursae Reduce the friction between bones in joints Sac like, filled with fluid, found within the synovial joints o Tendon Tubular shaped bursae (the Achilles’ tendon) Types of Joints- The variation in shape governs the range and type of movement o Planar joints Ex. Navicular and 2 nd and 3 rd cuneiforms; sternoclavicular joint, vertebrochondral A gliding joint- side to side movement only o Hinge joints Ex. Knee; ankle; Trochlea of the humerus and ulna...
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Test 3 Notes. - Test 3 Joints Joints(articulation arthrosis...

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