OIAN Posterior

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Last updated 4:55 PM on 9/23/22
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6 Terms

1
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Posterior deltoid
O: spine of scapula
I: deltoid tuberosity
A: shoulder abduction, extension, hyperextension, lateral rotation, horizontal abduction
N: axillary
2
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Latissimus Dorsi
O: spinous processes of T7 through L5, posterior surface of sacrum, iliac crest, and lower 3 ribs

I: medial floor of bicipital groove of humerus

A: shoulder extension, adduction, medial rotation, hyperextension

N: thoracodorsal nerve (C6-8)
3
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Teres major
O: inferior axillary border of scapula near inferior angle

I: medial lip of bicipital groove on the anterior surface of the humerus

A: shoulder extension, adduction and medial rotation

N: lower subscapular nerve (C5-C7)
4
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Supraspinatus
O: supraspinous fossa of the scapula

I: greater tubercle of humerus

A: shoulder abduction

N: suprascapular nerve (C5+C6)
5
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infraspinatus
O: infraspinous fossa of scapula

I: greater tubercle of humerus

A: shoulder lateral rotation, horizontal abduction

N: suprascapular nerve (C5+6)
6
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teres minor
O: axillary border of scapula

I: greater tubercle of humerus

A: shoulder lateral rotation, horizontal abduction

N: axillary nerve (C5+C6)