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Articulations: synovial
Movements at synovial joints
18
Anatomy
Undergraduate 1
10/12/2008

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Cards

Term
Flexion
Definition
Angle between articulating bones decreases (bending forearm at the elbow)
Term
Extension
Definition
Angle between articulating bones increases (straightening bent forearm)
Term
Hyperextension
Definition
Extension of joint beyond 180° or past anatomical position (looking up at ceiling)
Term
Lateral extension
Definition
Vertebral column moves in either lateral direction along coronal plane
Term
Abduction
Definition
Lateral movement of body part away from body midline (lifting arms out at sides)
Term
Adduction
Definition
Medial movement of body part toward body midline (arms back down at sides)
Term
Circumduction
Definition
Proximal end of limb stationary while distal end makes circular motion (arm circles)
Term
Rotation
Definition
Bone pivots around its own longitudinal axis (shaking head no)
Term
Pronation
Definition
Palm turned posteriorly
Term
Supination
Definition
Palm turned anteriorly
Term
Depression
Definition
Inferior movement of body part (opening mouth to chew)
Term
Elevation
Definition
Superior movement of body part (shrugging shoulders)
Term
Inversion
Definition
Sole of foot turned to face medially (sole in)
Term
Eversion
Definition
Sole of foot turned to face laterally (sole out)
Term
Protraction
Definition
Anterior movement of body part from anatomic position (jutting jaw out)
Term
Retraction
Definition
Posterior movement of body part from anatomic position (moving jaw in)
Term
Dorsiflexion
Definition
Ankle joint bent so superior surface of foot and toes moves toward leg (foot off the gas pedal)
Term
Plantar flexion
Definition
Ankle joint permits extension of foot so toes point inferiorly (foot on the gas pedal)
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