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muscle s of upper limb
- 1. MUSCLES OF UPPER LIMB Muscles of shoulder region Muscles of elbow region Muscles of wrist region Muscles of hand
- 2. Muscles of shoulder region From scapula to humerus From trunk to scapula From trunk to humerus Subscapularis Serratus anterior Pectoralis major Supraspinatus Trapezius latissimusdorsi Infraspinatus Rhomboidis major Teres minor Rhomboidis minor Teres major Levator scapulae coracobrachialis Pectoralis minor
- 3. From scapula to humerus
- 4. Lesser tubercle Upper and lower sub scapular nerves Medial rotation and adductor of arm
- 5. Greaterv tubercle Supra scapular nerve C5 C6 Initiates abduction of arm (15 degrees)
- 6. Supra scapular nerve C5 C6 Lateral rotation of arm Greater tubercle Axillary nerve C 5 C6
- 7. Muscles of rotator cuff Subscapularis Supraspinatus Infraspinatus Teres minor
- 8. Bicipital groove medial lip Lower subscapular nerve Medial rotation and adductor of arm
- 9. Medial border Musculo cutaneous nerve C 5,6,7 Flexor of arm
- 10. From trunk to scapula
- 11. Medial border Upper 8 ribs Long thoracic nerve or Nerve of bell C5,6,7 Pushing and punching movements
- 12. Transverse process of C1 C2 C3 Sup ,angle Branch from dorsal scapular nerve C 5 Elevates scapula Steadies scapula during movements of arm
- 13. TRAPEZIUS Spinal part of accessary nerve Elevates scapula Retract scapula Steadies scapula
- 14. Dorsal scapular nerve C5 C7 –T1 minor T2 –T5 major Root of spine Retract scapula Medial border
- 15. 3 4 5 ribs Corocoid process Medial & lateral pectoral nerves Drawes scapula forwards
- 16. From trunk to humerus
- 17. Lateral lip of biciptal groove Medial & lateral pectoral nerves Adduction Medial rotation 2nd to 6th costal cartilages
- 18. Post.layer of lumbar fascia thus attatching the muscle to L-S spine T 7 –T 12 spines Inter tubercular sulcus Thoracodorsal nerve C 6 7 8 Climbing muscle Adduction External & medial rotation as in swimming
- 19. Deltoid tuberosity Axillary nerve C 5 6 Acromial fibres –abductor of arm Ant .fibres -flexors & medial rotator post,.fibres -extensor & lateral rotator
- 20. Muscles of elbow region Flexors Extensors Pronators supinators Brachialis Triceps Pronator teres Supinator Biceps Anconeus Pronator quadratus Biceps Brachioradiolis
- 21. flexors
- 23. Musculocutaneous nerve C5 C6 Actions 1. strong supinator when arm is flexed 2. flexor of arm Biceps
- 24. Musculocutaneous nerve C5 C6 flexor of arm Ulnar tuberosity
- 25. Radial nerve C5 6 7 * Flexor of fore arm in mid prone position
- 26. Extensors
- 27. Radial nerve Extensor of elbow Spiral groove Infra glenoid tubercle
- 28. Radial nerve Weak extensor of elbow
- 29. Pronators
- 30. Common flexor origin Median nerve Pronator of elbow Flexor of elbow Coronoid process
- 31. Anterior interosseous nerve Pronator of fore arm
- 32. Supinators
- 33. Posterior interosseous nerve Supinator of fore arm
- 34. Muscles of wrist region Flexors Extensors Flexor carpi ulnaris Extensor carpi ulnaris Flexor carpi radialis Extensor carpi radialis longus Palmaris longus Extensor carpi radialis brevis
- 35. Flexors
- 38. Median nerve Inserted into flexar retinaculum
- 39. Extensors
- 40. Radial nerve Posterior intrrosseus nerve
- 41. Muscles of hand Extrinsic muscles Flexors Extensors Long muscles FDP Extensor digitorum Flexor pollicis longus FDS Extensor digiti minimi Abductor pollicis longus Extensor indicis Extensor pollicis longus
- 42. Intrinsic muscles Interossei Lumbricals Short muscles of thumb Short muscles of little finger Thenar muscles Hypothenar muscles Adductor pollicis Flexor ABductor Opponence pollicis brevis Flexor ABductor Opponence digiti minimi
- 44. flexors
- 45. Medial half by ulnar nerve Lateral half by AIN of median nerve
- 47. Extensors
- 48. Common extensor origin Base of middle and distal phalanx dorsal aspect
- 49. Posterior interossei nerve Base of middle and distal phalanx dorsal aspect of little finger
- 50. Posterior interosseus nerve Extension of index finger Joins the tendon of extensor digitorum
- 51. Long muscles
- 53. Base of the metacarpal Posterior interosseous nerve Abduction & extension of thumb
- 54. Extention of all joints of thumb Posterior interosseous nerve
- 56. Palmar shorthead Long head Ulnar nerve Base of proximal phalynx of same side Digital expansion 1st medial side of 1st metacapal 2nd medial side of 2nd metacapal 3rd lateral side of 4th metacarpal 4th lateral side of 5th meta crpal ADDuction of digits
- 57. Dorsal L M ABductor of digitsUlnar nerve
- 59. FDP tendon 123 4 1st & 2nd median nerve 3rd & 4th ulnar nerve Flexion at MP JOINT Extension at PIP JOINT Radial side of MP joint
- 61. Ulnar nerve Adducts the thumb
- 62. HYPOTHENAR MUSCLES Ulnar nerve Pisiform Hamate Flexes 5th metacarpal & rotates it laterally