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pectoralis minor

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.02 sec.
pectoralis minor [‚pek·tə′ral·əs ′mīn·ər]
(anatomy)
The small, deep muscle connecting the third to fifth ribs with the scapula.


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14-16) In the general clinical setting, factors thought to contribute to impingement include anatomic abnormalities, such as changes in acromial shape and slope, (17,18) poor rotator cuff or scapular muscle function or muscle fatigue (or both), (19) and posterior capsule or pectoralis minor tightness.
The author has attempted to highlight this link by demonstrating an association between postural alignment of the scapula and a structural alteration in pectoralis minor muscle length.
When performing tests that were used to assess muscle length, the patient exhibited shortness in the latissimus dorsi muscle (lacked 40[degrees] on the right and 30[degrees] on the left) and the pectoralis minor muscle (right posterior acromion approximately 5 cm [2 in] up from table and left posterior acromion approximately 2.
 
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