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2014-08-21 20:31:00

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  1. Origin, Insertion, Innervation, Blood Supply, and Action of .....

    Latissimus Dorsi
    • 1) Illiiac crest, Lubar fascia, SP T2-T8, inferior angle of scapula and 3-4 inferior ribs
    • 2) Medial to biciptial groove of humerus
    • 3)Thorcodorsal n.
    • 4) Thoracodorsal a.
    • 5) extends, adducts and medially rotates arm
  2. Origin, Insertion, Innervation, Blood Supply, and Action of .....

    • 1) superior nuchal line, external occiptial protuberance, ligamentum nuchae, C7 and throracic vertebrae of lower segment
    • 2) lateral clavicle, acromion and scapular spine
    • 3) spinal accessory n. (CN XI)
    • 4) transverse cervical a.
    • 5) raises, retracts and rotates scapula
  3. Origin, Insertion, Innervation, Blood Supply, and Action of .....

    Teres major
    • 1) lower segment of lateral border of scapula
    • 2) medial to bicipital groove of humerus
    • 3) lower subscapular n. (C5, C6)
    • 4)circumflex scapular a.
    • 5)adducts and medially rotates arm
  4. Origin, Insertion, Innervation, Blood Supply, and Action of .....

    Rhomboid major
    • 1) spines of T2-T5
    • 2) medial border of scapula¬†
    • 3) dorsal scapular (C4-5)
    • 4)dorsal scapular a.
    • 5)pulls scapula medially and raises medial border of scapula
  5. Origin, Insertion, Innervation, Blood Supply, and Action of .....

    Rhomboid minor
    • 1) C7 and T1
    • 2) medial border of scapula
    • 3)dorsal scapular n.
    • 4) dorsal scapular a.
    • 5)pulls scapula medially and raises medial border of scapula
  6. Origin, Insertion, Innervation, Blood Supply, and Action of .....

    Levator scapulae
    • 1) transverse processes of C1-C4
    • 2) Superomedial border of scapula
    • 3) dorsal scapular n. C4, C5
    • 4) dorsal scapular a.
    • 5) raises scapula at medial border
  7. Origin, Insertion, Innervation, Blood Supply, and Action of .....

    Serratus anterior
    • 1) Ribs 1-8
    • 2) inferior angle and medial border of scapula
    • 3) long thorasic n.
    • 4) lateral thorasic a.
    • 5) rotates scapula and pulls scapula around thoracic cage
  8. Muscles with the Blood supply of....

    Dorsal scapular a.
    • Rhomboid major
    • rhomboid Minor
    • Levator scapula
  9. Muscles that rotates the arm medially?
    • latissimus dorsi
    • teres major
    • subscapularis
    • deltoid
  10. Muscles deep to trapezius?
    • Levator scapulae
    • Rhomboid Major
    • Rhomboid Minor
  11. What happens when Long Thoracic n.(C5-C7) is injured?
    It is superficial to serratus anterior m.

    i.e. Knife fights, mastectomy,

    • Winged scapula (push hands against wall)¬†
    • causes scapula to be away from thoracic wall
    • upper limb may not be able to ABD above 90 degrees

    No sensory loss noted
  12. Traingle of Ausculation is?
    medial border of scapula, latismus dorsi and medially by trapezius m.

    • Good area to listen to posterior segments of lungs.
    • 6/7 intercostal space

    expose by crossing arms over chest
  13. Lumbar triangle (of Petit)?
    border: external oblique m. latissimus dorsi and inliac crest

  14. Thoracodorsal n. roots are?
    C6, C7, C8
  15. Dorsal Scapular n.?
    C4 and C5
  16. Long Thoracic n. roots are?
    C6 and C7

    *sometimes C5
  17. Origin, Insertion, Innervation, Blood Supply, and Action of .....

    • 1) lateral clavicle
    • 2) deltoid tuberosity and lateral shaft of humerus
    • 3) axillary n.
    • 4) posterior circumflex humeral a.
    • 5) ABducts arm, with help of supraspinatus muscle; flex and medially rotates arm; extend and lateral rotates arm
  18. Origin, Insertion, Innervation, Blood Supply, and Action of .....

    • 1) subscapular fossa
    • 2) lesser tubercle of humerus and adjacent capsul of shoulder joint
    • 3) upper and lower subscapular n. (C5, C6)
    • 4) subscapular a.
    • 5) medially rotates arm, helps to stabilize shoulder joint
  19. Origin, Insertion, Innervation, Blood Supply, and Action of .....

    • 1) supraspinous fossa
    • 2) greater tubercle and adjacent capsule of shoulder joint
    • 3) suprascapular n. (C5, C6)
    • 4) subscapular a.
    • 5) ABducts arm at shoulder first 15 degrees then assists deltoid muscle and stabilizes shoulder joint
  20. Origin, Insertion, Innervation, Blood Supply, and Action of .....

    • 1) infraspinous fossa
    • 2) greater tubercle of humerus and adjacent capsul of shoulder joint
    • 3) suprascapular n. (C5, C6)
    • 4) subscapular a. and Circumflex scapular a.
    • 5) laterally rotates arm and stabilizes shoulder joint
  21. Origin, Insertion, Innervation, Blood Supply, and Action of .....

    Teres Minor
    • 1) superior part of lateral scapula
    • 2) greater tubercle and adjacent capsul of shoulder joint
    • 3) axillary n.
    • 4) circumflex scapular a.
    • 5) laterally rotates arm and stabilizes shoulder joint
  22. Suprascapular n. roots are?
    C5, C6
  23. What muscles of the shoulder are innervated by C5, C6

    Deltoid, subscapularis, supraspinatus, infraspinatus, teres minor
  24. Subscapular a. supplies which muscles?


  25. What muscles of the shoulder are also supplied by the circumflex scapular a.?
    infraspinatus and teres minor
  26. How many muscles are in the rotator cuff?

    What are they?
    4, SITS

    • Supraspinatus
    • Infraspinatus
    • Teres Minor
    • Subscapularis
  27. What nerve root innervates the muscles of the rotator cuff?
  28. What are the common funcitons of the rotator cuff muscles?
    • protects glenohumeral joint
    • Gives joint stability
    • Holds head of humerus in glenoid fossa during movements
  29. What is Scapular anastomosis?
    collateral circulation is important if slow occulsion of the subclavian or proximal axillary aa. becomes necessory
  30. What does slow occulsions do during anastomosis? Sudden occulisions?
    allows good collateral circulation to develop

    does not allow sufficient time for collateral circulation.  Surgical ligation of the axillary a. between subscapular a. and profunda brachii a. will cut off blood supply to arm
  31. What arteries are involved in Scapular Anastomosis?
    • Dorsal scapular a.
    • Suprascapular a.
    • Circumflex scapular a.
    • Intercostal aa.
  32. What is the Quadrangular Space?
    Bordered by Teres minor m. Teres Major m. Long head off triceps, humerus

    has axillary n. Posterior circumflex humeral a.
  33. Triangular Interval is?
    Border: Teres major m., lateral and long heads of triceps

    Contains: Profunda brachii a., radial n.
  34. Triangular Space is?
    Border: Teres minor m., Teres major m., Long head of triceps

    Contains: Circumflex scapular a.
  35. What muscles are supplied by the artery (ies) of the Triangular Space?
    Circumflex scapular a.

    Infraspinatus and Teres minor
  36. Suboccipital Triangle is?
    border: Obliquus capitis inferior and superior, rectus capitis major

    Occipital a., greater and lesser occiptial nn., Suboccipital n., Transverse process of C1, spinous process of C2
  37. Transverse cervical a. derives from?
    Thyrocervical trunk, but highly variable
  38. Anterior humeral circumflex a.?
    from third part of axillary a.

    encircles head of humerus, helps with anastomoses

    supplies deltoid,
  39. Posterior humeral circumflex a. is?
    encircles humerus

    traverses quadrangular space with axillary n.

    Supplies deltoid
  40. Anterior Dislocation of Shoulder Joint?
    • causes Deltoird m. to atrophy
    • shoulder flattens compared to uninjured side, produces hollow inferior to acromion
    • causes loss of sensation over lateral proximal arm
    • ABduction of humerus from 15-90 degrees would be affected
  41. What raises arm (ABducts) 15 to 90 degrees?
  42. Rotator Cuff injury?
    • continual use of limb
    • instability of glenohumeral joint
    • Supraspinatus most commonly injured

    Avascular, prone to wear, inability to initiate first 15 degrees of ABduction
  43. What muscle raises the arm 15 degrees?
  44. Innervation of the Breast?
    Intercostal n. 4-6
  45. Blood supply of Breast?
    medial mammary which comes from perforating branch, anterior intercostal a. and internal thoracic

    Lateral mammary from the thorcodorsal a.

    Posterior intercostal from the aorta
  46. Origin and Insertion of Pectoralis major?
    clavicle, sternum, 1-6 costal cartilages

    Lateral lip of the intertubercule groove
  47. What motion is hindered by injury to Pectoralis Major?
    ADduction and rotates medially of the humerus
  48. Innervation of Pectoralis Minor? Pectoralis Major?
    medial pectoral nerve (C8,T1)
  49. Orgin and Insertion of Pectoralis Minor?
    3-5 ribs near costal cartilages

    coracoid process of scapula
  50. What nerve punctures the pectoralis minor?
    Medial pectoral nerve

    Lateral/medial pectoral nerve innervates the pectoralis major
  51. Action of the Pectoralis minor
    Protacts and stabilizes scapula
  52. Origin and Insertion of Subclavius
    first costal cartilage

    Inferior surface of the clavical
  53. Innervation of sublavius m.
    superior trunk of brachial plexus (C5, C6)
  54. What muscle depresses and steadies clavicle?
  55. Serratus Anterior originates where? and is responsible for what action?
    Ribs 1-8

    Protracts and rotates scapula
  56. Boundaries: Pectoralis major m. deltoid muscle and clavical is characteristic of what?

    What does it contain?
    Deltopectoral Triangle

    • Deltoid branch of thoracoacromial trunk
    • Cephalic Vein
  57. Draw the 8 bones of the right hand (Dorsal View)?
    Trapezium Trapezoid, Capitate (largest) Hamate (IV and V) Pisiform, Triquetrum, Lunate (Ulna), Scaphoid (radius)
  58. Where do most Anterior forearm muscles originate?
    Medial epicondyle of the humerus
  59. What muscles are the anterior forearm?
    • (Pass; Fail;Pass; Fail;Fail)
    • Pronator teres
    • Flexor carpi radialis
    • Plamaris longus
    • Flexor carpi ulnaris
    • Flexor digitorum superficiallis
  60. What muscles are part of lateral forearm?
    brachioradialis and Extensor carpi radialis longus, externsor carpi radialis brevis
  61. What innervates the anterior forearm
    Median and Ulnar Nerve
  62. What lies superficially to the Flexor digitorum superficialis?
    • Protonator Teres
    • Flexor carpi radialus
    • Palmaris Longus
    • flexor carpi ulnaris
    • Flexor digitorum superficialis
  63. Layer 2 of anterior forearm?
    Flexor digitorum superficialais and Flexor carpi ulnaris

    Flexor pollicis longus

    pronator quadrates
  64. Deepest layer of forearm m. include?
    Flexor digitorum profundus
  65. Origin of posterior forearm? Innervation of posterior forearm?
    lateral epicondyle of humerus

    Radial n.
  66. Muscles of layer 1 of posterior forearm?
    Anconeus, Brachioradialis, Extensor carpi radialis longus, extensor carpi radialis brevis, extensor carpi ulnaris, extensor digitorum, extensor digiti minimi Abductor pollicis longus and extensor pollicis brevis
  67. More medial muscle?

    Extensor carpi radialis longus or extensor carpi radialis brevis
    Extensor carpi radialis longus
  68. Abductor pollicis longus, extensor pollicis longus and extensor indicis are part of what layer?
    second layer
  69. Supinator is innervated by which nerve?
  70. Which is deeper?

    Extensor indicis or Extensor digitorum
    extensor indicis
  71. How many thenar muscles are there? what are they?
    3; flexor pollicis brevis, ABductor pollics brevis, opponens pollicis