A + P Muscle Terms

• Dorsiflexion

• Moves the instep of the foot toward the shin; standing on heels

• Plantar flexion

• Straightens the ankle joint; pointing your toes

• Inversion

• Turning the sole of the foot medially

• Eversion

• Turning the sole of the foot laterally

• Pronation

• Moving the palm of the hand from an anterior position to a posterior position

• Supination

• Moving the palm of the hand from a posterior position to an anterior position

• Circumduction
  

• Combination of flexion, extension, abduction and adduction

• Seen in ball and socket joints

• Rotation

• Movement of a bone around its longitudinal (up and down) axis

• Ball and socket joints

• Abduction

• Moving a limb away from the body midline

• Adduction

• Moving a limb towards the body midline

• Flexion

• Decreases the angle of the joint

• Found in hinge joints and ball and socket joints

• Extension

• Increases the angle of the joint

• Hyperextension-extension is > 180 deg