The Muscular System Movements

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The Muscular System Movements

• Chapter 6.2

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Flexion

• Decreases the angle of a joint
• Bring two bones closer together

3
Extension

• Increases the angle and distance between two
  bones

4
Hyperextension

• extension is greater than 180

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Abduction, Adduction Circumduction

• Abduction moving a limb away from the midline
• Adduction movement of a limb toward the
  midline
• Circumduction proximal end of limb is
  stationary, distal end moves in a circle

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Rotation

• movement of bone around its longitudinal axis

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• Inversion- turn sole of foot medially
• Eversion- turn sole of foot laterally

8

• Pronation- turn palm to face down (distal end of
  radius crosses over ulna)
• Supination- turn palm to face up (radius and ulna
  are parallel)

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• Dorsiflexion point toes up, bring closer to
  tibia
• Plantar flexion straightens ankle joint, toes
  point downward