Human Movement Science & Functional Anatomy of the:

Rhomboids

by Brent Brookbush DPT, PT, COMT, MS, PES, CES, CSCS, ACSM H/FS

Highlighted Rhomboids on a cadaver (Note the rhomboid major is highlighted with the band of muscle running superior to it with a parallel fiber direction being the rhomboid minor) - https://classconnection.s3.amazonaws.com/597/flashcards/1723597/jpg/bacposmusmbsrhomboid_major_m1344614814781.jpg

What’s in a name:

  • Rhomboid (n.) 1560s, from Middle French rhomboide or directly from Late Latin rhomboides, from Greek rhomboeides "rhomboidal; a rhomboid;" see rhombus + -oid.  (Etymology Online)

    • Rhombus - 1560s, from Late Latin rhombus, from Greek rhombos "rhombus, rhomb, lozenge; spinning top, magic wheel used by sorcerers; a spinning motion," from rhembesthai "to spin, whirl," from PIE *wrembh-, from *werbh- "to turn, twist, bend" (Etymology Online)
    • "- oid" - word-forming element meaning "like, like that of, thing like a ______," from Latinized form of Greek -oeides, from eidos "form." The -o- is connective or a stem vowel from the previous element. (Etymology Online)

      • Like the shape of a rhomboid (bent square)

Transverse Section - Rhomboids highlighted http://denversom.wikispaces.com/file/view

Rhomboids:

Origin:

  • Major: Spinous process of second through fifth thoracic vertebrae (8, 11).
  • Minor: Ligamentum nuchae, spinous processes of seventh cervical and first thoracic vertebrae (8, 11).

Insertion:

  • Major: By fibrous attachment to medial border of scapula between spine and inferior angle (8, 11, 17).
  • Minor: Medial border at the root of the spine of the scapula

By Anatomography - en:Anatomography (setting page of this image), CC BY-SA 2.1 jp, https://commons.wikimedia.org/w/index.php?curid=22240383 By Anatomography - en:Anatomography (setting page of this image), CC BY-SA 2.1 jp, https://commons.wikimedia.org/w/index.php?curid=22240383

Relative Location:

  • The rhomboid minor originates from the spinous prominens and inserts into the root of the spine of the scapula.  These two prominent landmarks may be palpated, allowing an individual to