Rotator Cuff Muscles

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3 Ratings

In this video I show the 4 rotator cuff muscles as well as the Teres major.


    Sub (L) under, below
    Scapul, =a (L) The shoulder blade

    Origin - Anterior surface of scapula
    Insertion - Lesser tubercle humerus
    Action - Medial or internal rotation of humerus


    Supra (L). Above, over, beyond
    Spin, =a, -i (L). A spine, thorn

    Origin - Supraspinous fossa of scapula
    Insertion - Greater tubercle of humerus
    Action - Abduction of humerus


    Infra (L). Below, beneath
    Spin, =a, -i (L). A spine, thorn

    Origin - Infraspinous fossa of scapula
    Insertion - Posterior humerus
    Action - External rotation of humerus

Teres minor

    Tere, =s, -t (L). Round, smooth
    Minor (L). Less, smaller

    Origin - Axillary border of scapula
    Insertion - Posterior humerus
    Action - External rotation of humerus

Teres major
 (also shown - not a rotator cuff muscle)

    Tere, =s, -t (L). Round, smooth
    Major (L). Larger

    Origin - Inferior part of axillary border of scapula
    Insertion - Anterior humerus
    Actions - Adduction, internal rotation and extension of humerus


Member Comments:


Anonymous commented on 06-Feb-2011 05:07 PM5 out of 5 stars
Better explanation than I had 15 yrs ago in massage school!


Member Comments:

  • David B commented Saturday 11th of April 2015 at 8:23:47PM

    I am enjoying looking at this interesting info about rotator cuff

  • commented Saturday 29th of November 2014 at 3:33:10PM

    Good visual props. Well explained and presented.