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Chapter 3 Articular System

Chapter 3 Articular System. Purposes of Joints. Allow motion Bear weight Provide stability . Types of Joints. Fibrous Cartilaginous Synovial Nonaxial Uniaxial Biaxial Triaxial. Synarthrosis Syndesmosis Gomphosis. Joint Structure. Bone Ligament Capsule Outer layer

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Chapter 3 Articular System

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  1. Chapter 3Articular System

  2. Purposes of Joints • Allow motion • Bear weight • Provide stability

  3. Types of Joints • Fibrous • Cartilaginous • Synovial • Nonaxial • Uniaxial • Biaxial • Triaxial • Synarthrosis • Syndesmosis • Gomphosis

  4. Joint Structure • Bone • Ligament • Capsule • Outer layer • Inner layer (synovial membrane) • Synovial fluid • Cartilage • Tendon • Bursa

  5. Planes and Axes • Planes • Saggital plane • Frontal plane • Transverse plane • Axes • Sagittal axis • Frontal axis • Vertical axis

  6. Degrees of Freedom • Number of planes in which joint can move • Uniaxial joint has one degree of freedom • Biaxial joint has two degrees of freedom • Triaxial joint has three degrees of freedom

  7. Common Pathological Terms • Dislocation • Subluxation • Osteoarthritis • Sprain • Tendonitis • Synovitis • Tenosynovitis • Bursitis • Capsulitis

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