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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 |