Rhomboid Major

• Rhomboid Major:

  • Larger muscle than rhomboid minor but may be continuous with it
  • Lies deep to trapezius

  A) Rhomboid Major

  
• O (origin)

  • Spinous processes of T2 to T5 and the intervening supraspinous ligament

  A) Rhomboid Major

  
• R (directions)

  • Obliquely downwards and laterally

  A) Rhomboid Major

  
• I (insertions)

  • Medial border of scapula between the spine of scapula and the inferior angle

  A) Rhomboid Major

  
• A (actions)

  • Scapular retraction and medial rotation

  A) Rhomboid Major

  
• NS (nerve supply)

  • Dorsal scapular nerve (C5)

  A) Rhomboid Major

  
• Function:

  • Scapula stabiliser when other muscles are active

  A) Rhomboid Major