THE SHOULDER THE SHOULDER GIRDLEGIRDLE

THE ACROMIOCLAVICULAR THE ACROMIOCLAVICULAR (AC) JOINT(AC) JOINT

THE BONESTHE BONES

ClavicleClavicle

Humerus – Anterior ViewHumerus – Anterior View

1. Head1. Head2. Lesser tubercle2. Lesser tubercle5. Medial epicondyle5. Medial epicondyle6. Trochlea6. Trochlea7. Capitulum7. Capitulum8. Lateral 8. Lateral

epicondyleepicondyle9. Intertubercular 9. Intertubercular

GrooveGroove

1. Head1. Head

5. Deltoid 5. Deltoid tuberositytuberosity

6. Lateral 6. Lateral epicondyle epicondyle

7. Olecranon fossa 7. Olecranon fossa

9. Medial 9. Medial epicondyleepicondyle

Humerus – Posterior ViewHumerus – Posterior View

ScapulaScapula

Scapula – Posterior ViewScapula – Posterior View

1.1. Acromion processAcromion process2.2. SpineSpine3.3. Superior angleSuperior angle4.4. Inferior angleInferior angle5.5. Medial (Vertebral) Medial (Vertebral)

borderborder6.6. Lateral (Auxiliary) Lateral (Auxiliary)

borderborder7.7. Supraspinous Supraspinous

fossafossa8.8. Infraspinous fossaInfraspinous fossa

1.

2.

3.

4.

5.6.

7.

8.

Scapula – Anterior ViewScapula – Anterior View

1. Acromion process1. Acromion process2. Coracoid process2. Coracoid process3. Glenoid fossa or 3. Glenoid fossa or

cavitycavity4. Inferior angle 4. Inferior angle 5. Superior angle5. Superior angle6. Medial (Vertebral) 6. Medial (Vertebral)

borderborder7. Lateral (Auxiliary) 7. Lateral (Auxiliary)

borderborder8. Supscapular fossa8. Supscapular fossa

1. 2.

3.

4.

5.

6.7.

8.

Scapula – Proximal (Top) ViewScapula – Proximal (Top) View

1. Acromion 1. Acromion processprocess

2. Coracoid 2. Coracoid processprocess

3. Glenoid fossa 3. Glenoid fossa or cavityor cavity

4. Spine4. Spine

5. Supraspinous 5. Supraspinous fossafossa

1.

2.

3.

4.

5.

Scapula – Lateral ViewScapula – Lateral View

1. Acromion process1. Acromion process2. Coracoid process2. Coracoid process3. Glenoid fossa or 3. Glenoid fossa or

cavitycavity4. Superior angle4. Superior angle5. Inferior angle5. Inferior angle

1.

2.

3.

4.

5.

Can You Name Them?Can You Name Them?

II. JOINTS AND THEIR ACTIONSII. JOINTS AND THEIR ACTIONS

Sternoclavicular jointSternoclavicular joint

DepressionDepression StabilizationStabilization

Acromioclavicular (AC) jointAcromioclavicular (AC) joint

1. Elevation 1. Elevation 2. Depression2. Depression3. Adduction 3. Adduction

((RetractionRetraction))4. Abduction4. Abduction

((ProtractionProtraction))5. Upward rotation5. Upward rotation6. Downward 6. Downward

rotationrotation

Depression/Elevation Protraction/Retraction

                                   

          

                                     

        

AbductionAdduction

Left Scapula Right Scapula

Upward Rotation

Downward Rotation

Upward Rotation

Downward Rotation

Left Scapula Right Scapula

AC Actions and MusclesAC Actions and Muscles

ACTIONACTION ElevationElevation DepressionDepression AdductionAdduction AbductionAbduction Upward rotationUpward rotation Downward rotationDownward rotation

MUSLCE LOCATIONMUSLCE LOCATION SuperiorSuperior InferiorInferior MedialMedial LateralLateral Depends on the line Depends on the line

of pullof pull Depends on the line Depends on the line

of pullof pull

THE SHOULDER JOINTTHE SHOULDER JOINTTHE GLENOHUMERAL JOINTTHE GLENOHUMERAL JOINT

Shoulder (Glenohumeral) Shoulder (Glenohumeral) jointjoint

1. Abduction1. Abduction 2. Adduction2. Adduction 3. Flexion3. Flexion 4. Extension4. Extension 5. Horizontal adduction5. Horizontal adduction 6. Horizontal abduction6. Horizontal abduction 7. External (lateral) rotation7. External (lateral) rotation 8. Internal (medial) rotation8. Internal (medial) rotation

Abduction/Adduction Flexion/Extension

Internal Rotation/External Rotation

Horizontal AdductionHorizontal Adduction

Horizontal AbductionHorizontal Abduction

GH Actions and MusclesGH Actions and Muscles

ACTIONACTION Flexion Flexion ExtensionExtension AdductionAdduction AbductionAbduction Horizontal AdductionHorizontal Adduction Horizontal AbductionHorizontal Abduction Internal RotationInternal Rotation External RotationExternal Rotation

MUSLCE LOCATIONMUSLCE LOCATION AnteriorAnterior PosteriorPosterior InferiorInferior SuperiorSuperior MedialMedial LateralLateral MedialMedial LateralLateral