Rhomboid Major

Diagram of Posterior Muscles of the Human Body

The rhomboid major muscles are deep muscles located in the upper-back (posterior torso) of the human body.

The rhomboid major muscles are immediately below (inferior to) the rhomboid minor muscles. Both of these are pairs of muscles located on each side of the upper-spine, between the shoulder blades.

Origin, Insertion and Actions of the Rhomboid Major muscles:

Point(s) of Origin:
  • Spinous processes of vertebrae T1 to T4.
Point(s) of Insertion:
Action(s):
  • Braces and rotates the scapula (shoulder bone)
  • Pulls the scapula (shoulder bone) towards the spine.

The rhomboid major is labelled on our diagram of human posterior muscles.

More about Muscles:

The following are some popular pages in the section about the human muscular system:

There are also more pages about the words used to describe muscles (terminology), the anatomy and physiology of muscles, muscular disorders and associated topics. See also books about sports medicine.

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