infraspinatous

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[1]

Origin

infraspinous fossa of scapula

Insertion

middle facet of greater tubercle of humerus

Action

extends arm & rotates it laterally

Innervation

suprascapular nerve (C5, C6)

More general terms

References

  1. ↑ Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999
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