Scapular Sling Muscles

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Author:
mandelyn
ID:
240943
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Scapular Sling Muscles
Updated:
2013-10-16 01:37:59
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Scapular Sling Muscles
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Description:
Muscles of the scapular sling
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  1. What are the 7 muscles of the scapular sling?
    • 1. Rhomboideus major
    • 2. Rhomboideus minor
    • 3. Levator scapulae
    • 4. Trapezius
    • 5. Serratus anterior
    • 6. Pectoralis minor
    • 7. Subclavius
  2. Origin of rhomboideus major?
    spinous processes of T2-T5
  3. Insertion of rhomboideus major?
    medial margin of scapula (between spine and inferior angle)
  4. Functions of rhomboideus major?
    • Retraction (adduction)
    • Downward rotation
    • Stabilize scapula
  5. Which scapular sling muscles are found superficial to the erector spinae & spinotransversalis muscles?
    • rhomboideus major
    • rhomboideus minor
    • trapezius
  6. Which scapular sling muscles are found sandwiched between trapezius and the erector spinae muscles?
    • rhomboideus major
    • rhomboideus minor
  7. rhomboideus minor is found __________ to rhomboideus major.
    superior
  8. Origin of rhomboideus minor?
    spinous processes of C7-T1
  9. Insertion of rhomboideus minor?
    medial margin of the scapula (base of the scapular spine)
  10. Functions of rhomboideus minor?
    • Retraction (adduction)
    • Downward rotation
    • Stabilize scapula
  11. Origin of levator scapulae?
    transverse processes of C1-C4
  12. Insertion of levator scapulae?
    superior angle of scapula
  13. Functions of levator scapulae?
    • Elevation
    • Lateral neck flexion (unilateral)
    • Stabilize scapula
  14. levator scapulae is found deep to __________.
    trapezius
  15. Which scapular sling muscle reacts to stress by pulling the shoulder to the neck?
    levator scapulae
  16. Origin of trapezius?
    • base of the occiput
    • superior nuchal ligament
    • spinous processes of C7 & T1-T12
  17. Insertion of trapezius?
    • lateral 1/3 of clavicle
    • acromion
    • spine of the scapula
  18. Functions of trapezius?
    • Retraction (adduction)
    • Upward rotation
    • Neck extension
    • Elevation
    • Depression
    • Stabilize scapula
  19. What is the most superficial muscle of the back?
    trapezius
  20. Origin of serratus anterior?
    outer surface of ribs 1-9
  21. Insertion of serratus anterior?
    medial margin of scapula
  22. Functions of serratus anterior?
    • Protraction (abduction)
    • Upward rotation
    • Stabilize scapula
  23. Which of the scapular sling muscles is found between the scapula and ribs?
    serratus anterior
  24. Which of the scapular sling muscles is found on the lateral thorax?
    serratus anterior
  25. Which scapular sling muscles forms the medial wall of the axilla?
    serratus anterior
  26. Origin of pectoralis minor?
    ribs 3, 4 & 5
  27. Insertion of pectoralis minor?
    coracoid process of scapula
  28. Functions of pectoralis minor?
    • Protraction (abduction)
    • Downward rotation
    • Stabilize scapula
    • Active in forced breathing
  29. Pectoralis minor is _____________ to pectoralis major.
    deep
  30. Origin of subclavius muscle?
    first rib
  31. Insertion of subclavius muscle?
    inferior, medial clavicle
  32. Functions of subclavius muscle?
    • Downward rotation of clavicle
    • Stabilize clavicle
  33. What two muscles of the scapular sling are deep to pectoralis major?
    • pectoralis minor
    • subclavius
  34. The subclavius muscle is found _________ to pectoralis major.
    deep
  35. All 7 scapular sling muscles ____________ on the axial skeleton and ___________ on the clavicle & scapula.
    • originate
    • insert
  36. All 7 scapular sling muscles stabilize the scapula except the ____________ which stabilizes the clavicle.
    subclavius
  37. What is the function of the scapular sling muscles?
    suspend the upper limb from the body
  38. What muscles produce upward rotation of the scapula?
    • trapezius
    • serratus anterior
  39. What muscles produce downward rotation of the scapula?
    • rhomboideus major
    • rhomboideus minor
    • pectoralis minor
  40. What muscles produce protraction (abduction) of the scapula?
    • serratus anterior
    • pectoralis minor
  41. What muscles produce retraction (adduction) of the scapula?
    • rhomboideus major
    • rhomboideus minor
    • trapezius
  42. What muscles produce elevation of the scapula?
    • levator scapulae
    • trapezius
  43. What muscles produce depression of the scapula?
    trapezius

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