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Joints and Movement
Medical Terminology: A Word Building Approach by Jane Rice: Ch. 6, Skeletal system
16
Medical
Undergraduate 1
09/04/2012

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Term
synarthrosis
Definition
(fibrous); does not permit movement. the bones are in close contact with each other, but there is no joint cavity. (example=cranial suture)
Term
amphiarthrosis
Definition
(cartilaginous); permits very slight movement. (example=vertebrae).
Term
diarthrosis
Definition
(synovial); allows free movement in a variety of directions. A synovial membrane lines the joint and produces synovial fluid, which lubricates the joint. (example= knee, hip, elbow, wrist, foot)
Term
flexion
Definition
bending a limb
Term
extension
Definition
straightening a flexed limb
Term
circumduction
Definition
moving a body part in a circular motion
Term
abduction
Definition
moving a body part away from the middle
Term
adduction
Definition
moving a body part toward the middle
Term
protraction
Definition
moving a body part forward
Term
retraction
Definition
moving a body part backward
Term
rotation
Definition
moving a body part around a central axis
Term
dorsiflexion
Definition
bending a body part backward
Term
pronation
Definition
lying face downward; also turning the palm downward
Term
supination
Definition
lying face upward; also turning the palm or foot upward
Term
eversion
Definition
turning outward
Term
inversion
Definition
turning inward
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