Muscles

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Author:
Naheer
ID:
51001
Filename:
Muscles
Updated:
2010-11-21 21:44:40
Tags:
Humany Anatomy
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Description:
Upper Limb and forearm muslces
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  1. Pectoralis Minor
    • O: 3-5 ribs
    • I: coracoid process
    • A: stabalize the scapula
    • In: C8-T1, pectoral nerve
  2. Subclavius
    • O: junction of 1st rib
    • I: clavicle
    • A: anchors/depresses clavicle
    • In: C5-C6, subclavian nerve
  3. Serratus Anterior
    • O: nuchal line, external occipital proturberance, c7-t12 spinous processes
    • I: clavicle, acromion and spine of scapula
    • A: elevates and depresses scapula
  4. Latissimus Dorsi
    • O: T6 spinous process, thoracolumbar fascia, iliac crest, 3-4 ribs
    • I: intertubercle sulcus of the humerus
    • A: extends, adducts, rotates humerus
    • In: c6-c8, thoracodorsal nerve
  5. Levator Scapulae
    • O: C1-C4 transverse process
    • I: medial border of scapula
    • A: elevates scapula
    • In: C3-C4 cervical nerves, C5 dorsal scapular nerves
  6. Rhomboid Minor
    • O: nuchal ligament, spinous process C7 and T1 vertebrae
    • I: scapular spine
    • A: retract, rotate scapula, depress the glenoid cavity
    • In: C4-C5 dorsal scapular nerve
  7. Rhomboid Major
    • O: spinous process T2-T5
    • I: medial border of scapula
    • A: retract, rotate scapula. Depress glenoid cavity
    • In: C4-C5 dorsal scapular nerve
  8. Deltoid
    • O: clavicle, acromion and spine of scapula
    • I: deltiod tuberosity
    • A: flexes, rotates, abducts, extends arm
    • In: C5-C6 axillary nerve
  9. Teres Major
    • O: inferior angle of scapula
    • I: intertubercular sulcus
    • A: adducts, rotates arm
    • In: C5-C6 subscapular nerve
  10. Supraspinatus
    • O: supraspinatus fossa
    • I: superior facet of greater tubercle
    • A: abduction of the arm
    • In: C4-C6 suprascapular nerve
  11. Infraspinatus
    • O: infraspinous fossa
    • I: middle facet of greater tubercle
    • A: rotate arm
    • In: C5-C6 suprascapular nerve
  12. Teres Minor
    • O: lateral border of scapula
    • I: inferior facet of greater tubercle
    • A: rotate arm
    • In: C5-C6 axillary nerve
  13. Subscapularis
    • O: subscapular fossa
    • I: lesser tubercle
    • A: rotate, adduct arm
    • In: C5-C7 subscapular nerve
  14. Pronator Teres
    • O: ulnar head-coronoid process
    • humeral head- medial epicondyle
    • I: middle of convexity of radius
    • A: pronates, flexes forearm
    • In: C6-C7 median nerve
  15. Pronator Quadratus
    • O: distal anterior ulna
    • I: distal anterior radius
    • A: pronates forearm, binds ulna and radius together
    • In: C8, T1 anterior interosseous nerve, median nerve
  16. Flexor Carpi Radialis
    • O: medial epicondyle
    • I: base of 3,2 metacarpal
    • A: flexes, abducts hand
    • In: C6-C7 median nerve
  17. Palmaris Longus
    • O: medial epicondyle
    • I: flexor retinaculum, palmar aponeurosis
    • A: flexes hand, tenses palmar aponeurosis
    • In: C7-C8 median nerve
  18. Flexor Carpi Ulnaris
    • O: olecranon, posterior border
    • I: pisiform, hamate, 5th metacarpal
    • A: flexes, adducts hand
    • In: C7-C8 ulnar nerve
  19. Flexor Digitorum Superficialis
    • O: humero-unlar head- medial epicondyle, coronoid process
    • radial head- oblique line of radius
    • I: middle phalanges, 4 digits
    • A: flexes digits
    • In: C7-C8, T1 median nerve
  20. Flexes Pollicis Longus
    • O: radius, interosseous membrane
    • I: distal phalanx
    • A: flexes thumb
    • In: C8,T1 median nerver, inerosseous nerve
  21. Flexor Digitorum Profundus
    • O: ulna, interosseous membrane
    • I: distal phalandes 2-5 digits
    • A: flexes distal joints 2-5 digits
    • In: median nerve C8, T1 ulnar nerve
  22. Brachioradialis
    • O: supra-epicondylar ridge of humerus
    • I: distal end of radius proximal to styloid process
    • A: flex foremarm
    • In: radial nerve C5-C7
  23. Extensor Carpi Radialis Longus
    • O: lateral supre-epicondylar ridge
    • I: base of 2nd metacarpal
    • A: extend/abduct hand, fist clenching
    • In: radial nerve C6-C7
  24. Extensor Carpi Radialis Brevis
    • O: lateral epicondyle
    • I: base of 3rd metacarpal
    • A: extend, abduct hand, fist clenching
    • In: radial nerve, C7-C8
  25. Extensor Carpi Ulnaris
    • O: lateral epicondyle, ulna
    • I: base of 5th metacarpal
    • A: extend, adduct hand, fist clenching
    • In: radial nerve, interosseous nerve C7-C8
  26. Extensor Digitorum
    • O:lateral epicondyle
    • I: medial 4 fingers
    • A: extend medial 4 fingers
    • In: radial nerve, interosseous nerve, C7-C8
  27. Extensor Digitorum Minimi
    • O: lateral epicondyle
    • I: extensor expansion of the 5th finger
    • A: extends 5th finger
    • In: radial nerve, interosseous nerve C7-C8
  28. Abductor Pollicis Longus
    • O: ulna, radius, interosseous membrane
    • I: base of 1st metacarpal
    • A: interosseous nerve C7-C8, radial nerve
    • In: abducts and extends thumb
  29. Extensor Pollicis Longus
    • O: ulna, interosseous membrane
    • I: base of the thumb
    • A: extend thumb
    • In: interosseous nerve C7-C8, radial nerve
  30. Extensor Pollicis Brevis
    • O: interosseous membrane, radius
    • I: base of thumb
    • A: extends thumb
    • In: interosseous nerve C7-C8, radial nerve
  31. Extensor Indicis
    • O: lateral epicondyle, supinator fossa, crest of ulna, radial langular ligament
    • I: radius
    • A: supinates, forearm
    • In: radial nerve, C7-C8

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