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joints

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Terms in this set (32)

  • the elbow

    hinge joint with humeroulnar and humeroradial joint

  • humeroulnar joint

    between trochlea of humerus and trochlear notch of ulna

  • humeroradial joint

    between capitulum of humerus and head of radius

  • radial collateral ligament

    extrinsic, supports lateral side of joint

  • ulnar collateral ligament

    extrinsic, supports medial side of joint

  • anular ligament

    extrinsic, stabilizes radial head

  • the knee joint

    largest diarthrosis, hinge joint, allows some rotation and lateral gliding, tibiofemoral, patellofemoral

  • tibiofemoral joint

    between femoral and tibial condyles

  • patellofemoral joint

    between patella and patellar surface of femur

  • articular capsule of knee

    covers all but the anterior surface which is covered by patella, the tendon of the quadriceps femoris mucle group and patellar ligament

  • medial and lateral menisci

    pair of c shaped fibrocartilage pads on tibial condyles

  • medial and lateral menisci functions

    improve fit between bones, shock absorption, absorption

  • tibial nd collateral ligament

    links to femur with tibia and attatches to medial meniscus

  • fibular collateral ligament

    links femur with the fibula but doesnt attach to lateral meniscus

  • anterior cruciate ligament

    runs from anterior insertion site on tibia to posterior of femur

  • acl function

    prevents tibia from moving too far anteriorly

  • posterior cruciate ligament

    runs from a posterior position on tibia to anterior femur

  • pcl function

    prevents tibia from moving too far posteriorly

  • the shoulder

    glenohumeral joint, made up of ball shaped humeral head and glenoid cavity on lateral scapula

  • shoulder joint details

    multiaxial, ball and socket, most freeely moveable joint in body , unstable

  • shoulder reinforcments

    ,tendon of long head of biceps brachii , coracohumeral ligament, 3 glenohumeral ligaments, subacromial bursa, subscapular bursa

  • rotator cuff

    subscapularis (anteriorly), supraspinatus,infraspinatus, teres minor(posteriorly)

  • glenoid labrum

    fibrocartilaginous ring that sits on the rim of the glenoid cavity

  • dislocated shoulder

    involves glenohumeral joint

  • seperated shoulder

    involves acromioclavicular joint

  • the hip (coxal joint)

    articulation between acetabulum and ball shaped head of femur

  • coxal joint details

    multiaxial ball and socket joint, more stable than shoulder joint

  • acetabular labrum

    fibrocartilage ring strengthens the fit between the bones, supported by strong articular capsule and powerful muscle groups

  • iliofemoral ligament

    reinforces anterior side of hip joint

  • ishiofemoral ligament

    supports posterior side of hip joint

  • pubofemoral ligament

    triangular thickening of inferior portion of articular capsule

  • ligament of head of femur

    links center of head of femur with acetabulum