1. Muscle Movements

2. Moving Muscles
Each skeletal muscle is attached at no less than 2 places to bone or connective tissue.
Origin is the attachment at the least movable point.
Insertion is the attachment at the most moveable point(s).

3. Types of Body Movements
Flexion & Extension
Abduction & Adduction
Rotation
Circumduction
Dorsiflexion & Plantarflexion
Inversion & Eversion
Supination & Pronation
Opposition

4. Flexion & Extension
Flexion – decreases the angle of a joint; brings two bones closer together Ex. bending arm at elbow Extension – increase the angle of a joint; moves two bones farther away Ex. straightening leg at knee

5. Flexion & Extension

6. Abduction & Adduction
Abduction – movement away from the midline Ex. lifting arm to the side Adduction – movement towards the midline Ex. moving legs together

7. Abduction & Adduction

8. Rotation
Rotation – movement around a longitudinal axis Ex. turning head

9. Circumduction
Circumduction – moving a limb in a circle; combination of flexion, extension, abduction and adduction Ex. circling arms

10. Dorsiflexion & Plantar flexion
Dorsiflexion – moving superior surface of foot towards the shin Ex. standing on heels Plantar flexion – flexing inferior surface of foot Ex. pointing toes

11. Dorsiflexion & Plantar flexion

12. Inversion & Eversion
Inversion – turning foot medially Eversion – turning foot laterally

13. Supination & Pronation
Supination – turning palm forwards to anatomical position; radius rotates over ulna so they are parallel Ex. moving palm to face anterior Pronation – turning palm backwards from anatomical position; radius rotates over ulna Ex. moving palm to face posterior

14. Supination & Pronation

15. Opposition
Opposition – moving thumb to touch tips of other fingers Ex. picking up an object with your finger and thumb