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Joint Movements
| Term | Definition |
|---|---|
| Gliding | Bones sliding against each other; wrists |
| Extension | Increasing the angle of the joint and returning back to anatomical position - front and back |
| Flexion | Decreasing the angle of the joint - front and back |
| Hyperextension | Beyond normal anatomical - out of anatomical position - front and back |
| Abduction | Away from midline - Side to Side |
| Adduction | Towards midline - Side to Side |
| Circumduction | Circulating with abduction and adduction |
| Medial and Lateral Rotation | Rotating back and forth |
| Supination | Hands, palms up; ulna and radius |
| Pronation | Hands, palms down; ulna and radius |
| Dorsiflexion | Toes up - ankles; tibia, fibula, and talus. |
| Plantar Flexion | Toes down - ankles; tibia, fibula, and talus. |
| Inversion | Soles in; talus, calcaneus (subtalar) |
| Eversion | Soles out, talus, calcaneus, (subtalar) |
| Protraction | Forward sticking outwards |
| Retraction | Pulling back |
| Elevation | Raising up |
| Depression | Pushing down |
| Opposition | Touching thumbs to finger, the trapezium bone and the first metacarpal bone of the thumb, which form the carpometacarpal (CMC) joint |
| Plane joint | Flat on flat, carpals and tarsals |
| Hinge | Flexion and extensions; one plane, and elbows and knees |
| Pivot | Round thong in socket; one plane, radius and ulna, where a bone rotates around an axis. |
| Condyloid | Shallow cub/round end; phalanges |
| Saddle | A type of synovial joint where the ends of the bones are shaped like a saddle, with concave and convex surfaces that fit together like a rider on a horse |
| Ball and Socket | Most mobile, head sits in socket (humerus and femur) |