Chap 8 CBIO 4 - 4. Multiaxial/ Ball-and-Socket Joints -A...

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4. Multiaxial/ Ball-and-Socket Joints -A spherical or hemispherical head of one bone articulates with a cuplike socket of another :-allow movement in all axes and planes, including rotation Multiaxial joints are the most freely moving synovial joints Examples: shoulder and hip joints Special Movements • Supination and pronation • Inversion and eversion • Protraction and retraction • Elevation and depression • Opposition Synovial Joints: Knee Largest and most complex joint of the body Three joints in one surrounded by a single joint cavity 1. Femoropatellar joint 2. Lateral and medial tibiofemoral joints with the menisci (semilunar cartilages) interposed 3. Intra-articular (intracapsular) ligaments:- anterior and posterior cruciate ligaments Allows flexion, extension, and some rotation Synovial Joints: Knee Ligaments and Tendons – Anterior View These give support and strengthen the articulation:- Tendon of the quadriceps femoris muscle Lateral and medial patellar retinacula
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Chap 8 CBIO 4 - 4. Multiaxial/ Ball-and-Socket Joints -A...

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