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I3 - Articulations(Joints I Classification by Function A...

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Articulations (Joints) I. Classification by Function A. synarthroses - immoveable (sutures in cranium) B. amphiarthroses - slightly moveable (tibia-fibula) C. diarthroses - freely moveable (shoulder joint) II. Fibrous Joints A. Sutures 1. between cranial bones 2. very tight, thin layer of connective tissue 3. synostoses - bone replaces connective in adult B. Syndesmoses 1. very little freedom for movement 2. interosseous membrane/ligament present C. Gomphoses 1. one part fit tightly into the other 2. periodontal tissue holds parts firmly together 3. example: teeth in the mandible and maxillae III. Cartilaginous Joints A. Synchondrosis 1. hyaline cartilage --> bone over time 2. example: area between epiphysis & diaphysis of bone 3. example: joint between ribs and sternum B. Symphysis 1. bones connected by disc of fibrocartilage 2. allows for slight movement (amphiarthrotic) 3. example: pubic symphysis, intervertebral discs IV. Synovial Joints 1
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Articulations (Joints) A. Structure 1. any joint where there is a space between bones 2. synovial cavity - space between the bones 3. freely moveable joints (diarthrotic) 4. articular cartilage - covers articular surface 5. articular capsule
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