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Joints - Joints Joints(Articulations Sites where two or...

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Joints Joints (Articulations): Sites where two or more bones meet. Two functions: 1. Secure bones together and 2. Allow rigid skeleton to move. With the exception of the hyoid bone, every bone forms a joint with at least one other bone. Joint Classification: Structural classification: Based on the material binding the bones together Presence or absence of a joint cavity Examples: fibrous, cartilaginous, synovial joints Functional classification: Based on the amount of movement allowed synarthroses - immovable joints amphiarthroses - slightly movable joints diarthroses - freely movable joints Freely movable joints predominate in the limbs. Immovable and slightly movable joints are found in the axial skeleton. Fibrous joints are immovable. Synovial joints are freely movable. Cartilaginous joints have both rigid and slightly movable examples. Fibrous joints: Bones are joined by fibrous tissue.
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