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Joints & Movement
| Question | Answer |
|---|---|
| functional junctions between bones binds bones together | joints |
| between bones that are close together example: flat bone of the skull | fibrous joints |
| between the vertebrae allows limited movement | cartilaginous joints |
| most joints of skeletal system allows free movement | synovial joints |
| allows wide range of motion example: shoulder and hips | ball and socket joint |
| oval shaped condyl fits into elliptical cavity of another bone example: wrist and ankle | condyloid joint |
| like hinges on a door example: elow and phalanges | hinge joint |
| mostly flat allows sliding and twisting movement | gliding joints |
| allows limited movement around a central axis | pivot joint |
| articulating bones have concave and convex regions example: carpals and metacarpals | saddle joint |
| bending parts so that the angles between them decrease | Flexion |
| Straightening parts so that the angle between increases | extention |
| movement at the ankle that brings foot closer to shin | Dorsiflexion |
| Movement at the ankle that brings foot farther from the shin | plantar flexion |
| Extention of the part at the joint beyond the anatomical position | Hyperextention |
| Moving away from mid line of the body | Abduction |
| Moving towards mid line of body | Adduction |
| Moving around an axis | Rotation |
| Moving a part so the end so that the end follows a circular path | Circumduction |
| turning the hand so that the palm is downwards | Pronation |
| Turning hand so the palm is upward | Supination |
| Turning foot so the plantar is facing out | Eversion |
| Turning foot so the plantar is facing in | Inversion |
| Moving a part backwards | Retaraction |
| Moving a part foward | Protraction |
| Rising a part | Elevation |
| Lowering a part | Depression |