Skeletal System Part II

Skeletal System Part II - Joints...

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Joints
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Articulations (Joints) of Bone •Arthrology­ the scientific study of joints Classification •Structural­ based on the absence or presence of a space between the articulating bones called a synovial cavity and the type of connective tissue that binds the bones together. Fibrous ­ if there is no synovial cavity and bones are held together by fibrous tissue. Cartilaginous ­ if there is no synovial cavity and the bones are held together by cartilage. Synovial ­ if there is a synovial cavity and the bones are united by a surrounding articular capsule and accessory ligaments.
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Functional Classification­ based on the degree of movement that the joint permits. Synarthrosis ­ immovable joint Amphiathrosi s­ slightly movable joint Diarthrosis ­ freely movable joint Synarthrosis Suture ­ a fibrous joint found between bones of the skull Gomphosis ­ a fibrous joint in which a cone­shaped peg fits into a socket. Ex: roots of the teeth in the alveoli (socket) of the maxillae and mandible. Synchondrosis ­ a cartilaginous joint in which the connecting material is hyaline cartilage. The joint is eventually replaced by bone. •Ex,: epiphyseal plate and joints between the rib and the sternum.
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This note was uploaded on 12/08/2011 for the course AMY 2A taught by Professor Jamesivey during the Spring '06 term at Riverside Community College.

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Skeletal System Part II - Joints...

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