1. Muscles of Shoulder Girdle
Chapter 4

2. Movements of the Scapula
1. Elevation
2. Depression
3. Adduction (retraction)
4. Abduction (protraction)
5. Downward rotation
6. Upward rotation

3. Anterior Muscles
Pectoralis Minor
Serratus Anterior

4. Pectoralis Minor Origin: Anterior surface of 3, 4, and 5 ribs
Insertion: Coracoid process
Actions:
Abduction of the scapula
Downward rotation of the scapula
Depression of the scapula

6. Serratus Anterior Origin: Lateral surface of upper 8 ribs
Insertion: Anterior surface of medial border and inferior angle of scapula.
Actions:
Abduction of the scapula
Upward Rotation of the scapula

9. Posterior Muscles
Levator Scapluae
Trapezius
Rhomboid

10. Levator Scapulae
Origin: Transverse processes of the first 4 cervical vertebrae.
Insertion: Superior angle and medial border of the scapula.
Actions: Elevation of the scapula

12. Trapezius
Origin: Occipital bone, ligamentum nuchae, spinous process of the C7 and all Thorasic vertebrae
Insertion:
1. Lateral 1/3 of clavicle.
2. Top of Acromion process.
3. Upper border of spine of the scapula.
4. Medial surface of spine of the scapula.
Actions:
Upper – elevation of the scapula
Middle – elevation, upward rotation, & adduction of the scapula
Lower – depression, AC adduction and upward rotation of the scapula

13. Upper – elevation
Middle – elevation, upward rotation, & adduction
Lower – depression, adduction and upward rotation

14. Pull of the lower fibers
Movement of scapula

16. Rhomboid (major and minor)
Origin: Ligamentum nuchea and spinous process of C1-7 and 2-5 T
Insertion: Medial border of the scapula
Actions:
Adduction of the scapula
Downward rotation of the scapula
Elevation of the scapula

18. Subclavius Origin: Superior aspect of first rib
Insertion: Inferior aspect at mid-clavicle
Action
Depression of the scapula
Stabilization of the scapula

20. Scapula Adduction Abduction Upward Rotation Downward Rotation
Trap (middle)
Pect Minor
Serratus Ant.
Trap (lower)
Rhomboid
Rhomboids

21. Name the muscle.
Rhomboid
Name the action
Adduction of scapula

22. Name the muscle.
Pectoralis minor
Name the action
Depression of the scapula

23. Name the muscle.
Trapezius
Name the action
Adduction of the scapula
Name the action
Upward rotation

24. Name the muscle.
Levator scapula
Name the action
Elevation of the scapula

25. Name the muscle.
Serratus Anterior
Name the action
Abduction of scapula

26. ?
Latissimus Dorsi