CBIO2500 Notes- Articulations,Joints

CBIO2500 Notes- Articulations,Joints - Articulations...

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Articulations Articulations are points of contact between bone and bone, bone and cartilage, or bone and teeth, that allow for movement.
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Classifcation oF Joints Structural is based upon how bones are joined. bony (synostosis) fbrous (synarthrosis) cartilaginous (amphiarthrosis) synovial (diarthrosis) ±unctional is based upon range oF movement. synostosis synarthrosis amphiarthrosis diarthrosis essentially immobile syn = together arthrosis = joint dia = through
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Structure determines function and strength. High congruity = little movement, but resistant to dislocation. Low congruity = high mobility, but little resistance to dislocation. Movement is ultimately determined by three factors: The way the articulating surfaces Ft together. The ±exibility of the tissues that bind the bones together. The position of the ligaments, tendons and muscles.
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Structural Classifcation oF Joints
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Synostosis (Bony Joint) immovable joint usually from the fusion of bones in childhood - ossiFcation Can you think of an example from bone development?
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Fibrous joints are all connected by dense regular CT
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Synarthroses (Fibrous Joints) Suture synarthrotic may ossify: synostosis protection
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Gomphosis attachment of a tooth to its socket held in place by a periodontal ligament Synarthroses (Fibrous Joints)
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Syndesmosis most mobile of all Fbrous joints interosseous ligaments Synarthroses (±ibrous Joints)
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joints are all held in place by cartilage. Amphiarthrosis
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This note was uploaded on 03/17/2009 for the course CBIO 2500 taught by Professor Dr.turner during the Fall '08 term at UGA.

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CBIO2500 Notes- Articulations,Joints - Articulations...

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