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joints
sports academy revision for EOY exam 2013
| Term | Definition |
|---|---|
| joint | is an articulation (movement) between two or more bones. |
| FIBROUS JOINT: | Bones United by fibrous tissue. E.g. Joints of the skull, tooth connected to jaw. These bones had little or no movement. |
| CARTILAGINOUS JOINT: | Bones united by cartilage, more movement than fibrous joint but still not much. E.g. Spine, ribs and sternum, pubic symphysis. |
| SYNOVIAL JOINT: | These are the most common joint and are mobile. With these joints the bones are united by a fluid filled joint capsule which is reinforced by ligaments. |
| BALL AND SOCKET: | This is the most moveable/flexible joint, it allows flexion, extension, abduction, adduction, rotation/circumduction. E.g. Shoulder, hip. type of synovial joint |
| HINGE: | This joint allows movement in on place, like a hinge on a door. Used for flexation and extension. E.g. Elbows and knees. type of synovial joint |
| PLANE JOINT: | This joint uses a sliding type movement, it has small movement in all directions. E.g. Collar bone (clavicle) and shoulder blade. type of synovial joint |
| SADDLE JOINT: | This joint has saddle shaped ends of bone. They have two different planes. E.g. Thumb. type of synovial joint |
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Ella.scopas
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