joints no not those kind of joints ya hippie…
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Joints No not those kind of joints ya hippie…. Structural Classifications. Fibrous – joints held together by (mainly collagen) fibres. Cartilaginous – cartilages joints Synovial – cartilage capped bones are separated by a fluid filled space and stabilised with ligaments. - PowerPoint PPT PresentationTRANSCRIPT
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JointsNo not those kind of joints ya
hippie….
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Structural Classifications
• Fibrous – joints held together by (mainly collagen) fibres.
• Cartilaginous – cartilages joints
• Synovial – cartilage capped bones are separated by a fluid filled space and stabilised with ligaments.
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Functional Classifications
• Synarthroses – Immovable joints (syn = together, arthro = joint)
– In adults usually Fibrous
• Amphiarthroses – Slightly movable (amphi = on both sides)– In adults usually Cartilaginous
• Diarthrotic Joints – Freely moveable (Dia = through, apart)– All are Synovial
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Functional Classifications
• Synarthroses– Where do you find these?
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Synarthroses• Sternum and rib 1 (sternocostal) structurally
classified as a synchodroses– What structural classification is a synchodroses under?
• Distal tibiofibular joint (has slight give) structurally classified as a syndesmoses– What structural classification is a syndesmoses under?
• Suture joints (syntoses) in the skull– What is the function of suture joints?– What is different about these joints at birth and in early
life? Why are they different then?
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•Apert’s Syndrome, what’s happen to this kid?
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• Premature fusion of skull bones is called either craniosynostosis or craniostenosis.
•This occurs in Apert’s Syndrome and Crouzon Syndrome
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Amphiarthroses
• They are synphyses or fibrocartilage joints – Where do you find these?
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Examples of amphiarthrotic joints
• Between vertebral bodies– How far can you twist your spine?– Where is most of the movement from? Why?
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All diarthrotic joints are synovial joints
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Diarthrotic joint types
• Ball and socket
• Hinge
• Gliding (or plane)
• Pivot
• Saddle
• Condyloid
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Ball and Socket Joints
• Multi-axial
• What is different about the hips and shoulders?
• Why are the hips are shoulder so different?
• What are the pros and cons of these differences?
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Pivot Joints
• Uniaxial
• Where are they?
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Hinge Joints
• Where are they?
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Saddle Joints
• Where are they?
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Gliding Joint
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Wristlock – exploiting a joint – see page 20
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Other factors in joint movement
Double jointedness
Stretching