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THE SHOULDER JOINT

THE SHOULDER JOINT. Chapter 5. Bones. Humerus Scapula Clavicle. 1. Head 2. Lesser tubercle 9. Intertubercular Groove 10. Greater tubercle. Humerus – Anterior View. Humerus – Posterior View. 1. Head 5. Deltoid tuberoscity. Deltoid Tuberoscity. Scapula – Posterior View.

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THE SHOULDER JOINT

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  1. THE SHOULDER JOINT Chapter 5

  2. Bones • Humerus • Scapula • Clavicle

  3. 1. Head 2. Lesser tubercle 9. Intertubercular Groove 10. Greater tubercle Humerus – Anterior View

  4. Humerus – Posterior View 1. Head 5. Deltoid tuberoscity

  5. Deltoid Tuberoscity

  6. Scapula – Posterior View • Acromion process • Spine • Superior angle • Inferior angle • Medial (Vertebral) border • Lateral (Auxiliary) border • Supraspinous fossa • Infraspinous fossa 3. 1. 7. 2. 8. 5. 6. 4.

  7. Scapula – Anterior View 1. Acromion process 2. Coracoid process 3. Glenoid fossa or cavity 4. Inferior angle 5. Superior angle 6. Medial (Vertebral) border 7. Lateral (Auxiliary) border 8. Supscapular fossa 1. 2. 5. 3. 8. 6. 7. 4.

  8. Scapula – Proximal (Top) View 1. Acromion process 2. Coracoid process 3. Glenoid fossa or cavity 4. Spine 5. Supraspinous fossa 1. 4. 3. 5. 2.

  9. Scapula – Lateral View 1. Acromion process 2. Coracoid process 3. Glenoid fossa or cavity 4. Superior angle 5. Inferior angle 4. 1. 2. 3. 5.

  10. Can You Name Them?

  11. Joints • There are two joints to the shoulder complex • The acromioclavicular (AC) joint where the clavicle meets the acromion. • The glenohumeral joint or the shoulder joint.

  12. Shoulder Joint • Ball and socket joint • Movement in all three planes • Glenoid fossa • Glenoid labrum • Head of humerus

  13. Joint Capsule

  14. Joint Capsule • Four ligaments are the main source of stability for the shoulder, and help to keep the shoulder from dislocating. • Superior glenohumeral ligament • Coracohumeral • Middle glenohumeral ligament • Inferior glenohumeral ligament

  15. Other Ligaments • The coracoacromial ligament connects the coracoid process and the acromion process Coracoacromial ligament

  16. coracoacromial

  17. Bursa • A bursa is a saclike structure containing lubricating fluid and located between a tendon and a bone or between moving structures.

  18. Shoulder (Glenohumeral) joint 1. Abduction 2. Adduction 3. Flexion 4. Extension 5. Horizontal adduction 6. Horizontal abduction 7. External (lateral) rotation 8. Internal (medial) rotation

  19. Actions: Sagittal plane

  20. Actions: Frontal plane

  21. Actions: Transverse plane

  22. Actions: Transverse plane

  23. Abduction/AdductionFlexion/Extension

  24. Internal Rotation/External Rotation

  25. Horizontal Adduction

  26. Horizontal Abduction

  27. ACTION Flexion Extension Adduction Abduction Horizontal Adduction Horizontal Abduction Internal Rotation External Rotation MUSLCE LOCATION Anterior Posterior Inferior Superior Medial Lateral Medial Lateral Shoulder Actions and Muscles

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