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Upper Limb Regions

Upper Limb Regions. Shoulder Arm & Forearm Hand. Shoulder region. Bones Joints Muscles Vessels & Nerves. Shoulder Osteology. Clavicle Scapula Humerus. Clavicle Sup. . S shape. Latin clavis = key, old Roman key was S-shaped. Clavicle Inf. Ligaments attachment.

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Upper Limb Regions

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  1. Upper Limb Regions • Shoulder • Arm & Forearm • Hand

  2. Shoulder region • Bones • Joints • Muscles • Vessels & Nerves

  3. Shoulder Osteology • Clavicle • Scapula • Humerus

  4. Clavicle Sup. S shape Latin clavis = key, old Roman key was S-shaped

  5. Clavicle Inf. Ligaments attachment Conoid: cone shape

  6. Clavicle Ant. Medial & lateral ends

  7. korax = a crow Posterior Anterior

  8. Glene: Greek = socket acromion: Greek akros = Hill

  9. Shoulder Separation

  10. Ant. Lat.

  11. Subacromial bursa Bursitis

  12. Shoulder X-ray, AP projection 1, Clavicle. 2, Acromion. 3, Greater tubercle. 4, Lesser tubercle. 5, Neck of Humerus. 6, Humerus. 7, Coracoid Process. 8, Axillary border of scapula. 9, Rib.

  13. Shoulder region • Bones • Joints • Muscles • Vessels & Nerves

  14. Classifications of muscles that move the shoulder • A. muscles connecting scapula to humerus • B. muscles connecting trunk to scapula • C. muscles connecting trunk to humerus

  15. Biceps & Triceps tendons

  16. A. muscles connecting scapula to humerus • Supraspinatus • Infraspinatus • Teres minor • Subscapularis • Teres major • Coracobrachialis • Deltoid

  17. Short muscles

  18. Quiz supraspinatus infraspinatus teres minor subscapularis

  19. Teres major • Origin: • Inf angle of scapula • Insertion: • Med lip of groove • Actions: • Internal rotation and adduction of arm

  20. Coracobrachialis • Function:flex & adductthe shoulder joint

  21. Deltoid Origin: Clavicle, scapula Insertion: Deltoid tuberosity of humerus Actions: Abduction Anterior deltoid: internal rotation Posterior deltoid: external rotation

  22. Classifications of muscles that move the shoulder • A. muscles connecting scapula to humerus • B. muscles connecting trunk to scapula • C. muscles connecting trunk to humerus

  23. B. muscles connecting trunk to scapula • Serratus anterior • Levator scapula • Rhomboid major • Rhomboid minor • Trapezius • Pectoralis minor

  24. Serratus Anterior Origin: Ribs Insertion: Medial border of scapula Actions: Protraction and rotation of scapula

  25. Levator scapula Origin: Cervical vertebrae Insertion: Scapula Action: Elevation of the scapula

  26. Rhomboid major and minor Origin: Cervical and Thoracic vertebrae Insertion: Scapula Actions: Retraction Elevation

  27. Trapezius Origin: Occipital bone of skull, cervical and thoracic vertebrae Insertion: Clavicle and Scapula Actions: Elevation retraction

  28. Pectoralis Minor Origin: Ribs Insertion: Coracoid process of scapula Action: Depression of scapula

  29. Classifications of muscles that move the shoulder • A. muscles connecting scapula to humerus • B. muscles connecting trunk to scapula • C. muscles connecting trunk to humerus

  30. C. muscles connecting trunk to humerus • Pectoralis major • Latissimusdorsi

  31. PectoralisMajor Origin: Clavicle, sternum, upper ribs Insertion: Crest of greater tubercle and lat lip Action: Add, med rotation

  32. LatissimusDorsi Origin: Vertebrae, sacrum, ilium Insertion: Medial lip Actions: Adduction and med rotation of humerus

  33. LatissimusDorsi if humerus is fixed

  34. Covering th front and back of the trunk. • The pectoralis major and latissimusdorsi both adduct and medially rotate the Humerus.

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