1 / 15

Joints of the Shoulder

Trapezius (Upper fibers) O: base of skull, occipital protuberance, posterior ligaments of neck I: posterior aspect of lateral 1/3 of clavicle A: elevation of scapula, extension and rotation of head at the neck.

dore
Download Presentation

Joints of the Shoulder

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Trapezius (Upper fibers)O: base of skull, occipital protuberance, posterior ligaments of neckI: posterior aspect of lateral 1/3 of clavicleA: elevation of scapula, extension and rotation of head at the neck

  2. Trapezius (Middle fibers)O: spinous processes of 7th cervical and upper three thoracic vertebraeI: medial border of acromion process and upper border of scapular spineA: elevation, upward rotation, and adduction (retraction) of scapula

  3. Trapezius (Lower fibers)O: spinous process of 4th through 12th thoracic vertebraeI: triangular space at the base of scapular spineA: depression, adduction (retraction), and upward rotation of scapula

  4. Levator scapulaeO: Transverse processes of upper four cervical vertebraeI: Medial border of scapula above base of scapular spineA: Elevates the medial margin of scapula, weak downward rotation and weak adduction

  5. Rhomboid minor and majorO: Spinous processes of last cervical and first five thoracic vertebraeI: Medial border of scapula below the spineA: Acting together: adduction (retraction) of scapula, rotation downward from upward rotated position, and elevation

  6. Serratus anteriorO: Surface of upper nine ribs at side of chestI: Anterior aspect of whole length of medial border of scapulaA: Abduction (protraction) and rotation upward of scapula

  7. Pectoralis minorO: Anterior surfaces of 3rd to 5th ribsI: Coracoid process of scapulaA: Abduction (protraction) of scapula, downward rotation of scapula, and depression of scapula from elevated position

  8. SubclaviusO: Superior aspect of 1st rib at its junction with its costal cartilageI: Inferior groove in the midportion of clavicleA: Stabilization and protection of sternoclavicular joint, depression and abduction of scapula

  9. Joints of the Shoulder • Glenohumeral Joint • Acromioclavicular Joint • Coracoclavicular joint • Sternoclavicular joint • Coracoacromial joint

  10. Ligaments of the Shoulder • Coracohumeral ligament – stabilizes the superior part of glenohumeral joint • Glenohumeral ligament (superior, middle, inferior) – stabilizes the anterior part of the glenohumeral joint • Transverse humeral ligament – stabilizes the biceps brachii tendon (long head) • Coracoacromial ligament (coracoacromial arch) – stabilizes the superior part of glenohumeral joint • Acromioclavicular ligament - stabilizes the acromioclavicular joint (AC joint)

  11. Coracohumeral and Glenohumeral Ligaments (superior, middle, inferior)

  12. Transverse humeral ligament

  13. Coracoacromial Arch (acromion, coracoid process, coracoacromial ligament)

  14. Acromioclavicular Ligament

More Related