The rhomboid muscles (/ˈrɒmbɔɪd/), often simply called the rhomboids, are rhombus-shaped muscles associated with the scapula. There are two rhomboid muscles on each side of the upper back:[1][2][3]

Rhomboid muscle
Muscles connecting the upper extremity to the vertebral column.
OriginNuchal ligaments, spinous processes of the C7-to-T5 vertebrae
InsertionMedial border of the scapula
ArteryDorsal scapular artery
NerveDorsal scapular nerve
ActionsPulls scapulae medially, rotates scapulae, holds scapulae into thorax wall
Latinmusculi rhomboidei
TA22232, 2233
Anatomical terms of muscle

The large rhombus-shaped muscle, located under the trapezius muscle in the upper part of the thoracic region of the back, and the small muscle, in the same way, participate in the movement of the scapula.[4] Their functions are the following:[1][2][3]

  • Drawing scapula superomedially
  • Supporting scapula
  • Rotating glenoid cavity inferiorly

Both muscles are innervated by the dorsal scapular nerve, a branch of the brachial plexus.[1][2][3]

Additional images




  1. ^ a b c Standring, Susan, ed. (2016). Gray's anatomy: the anatomical basis of clinical practice (41st ed.). [Philadelphia]: Elsevier. ISBN 978-0-7020-5230-9. OCLC 920806541.
  2. ^ a b c Moore, Keith L.; Dalley, Arthur F. II; Agur, A. M. R. (2014). Clinically oriented anatomy (7th ed.). Philadelphia: Lippincott Williams & Wilkins. ISBN 978-1-4511-1945-9. OCLC 813301028.
  3. ^ a b c "Rhomboid muscles". Kenhub. Retrieved September 27, 2019.
  4. ^ "Rhomboid Muscle Pain". RhomboidMusclePain. Retrieved November 13, 2019.