Myscles Of Rotator Cuff (SITS) Flashcards

1
Q

What is the origin, insertion and action for the supraspinatus?

A

O: supraspinous fossa
I: greater tubercle
A: abducts arm

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2
Q

What is the origin, insertion and action for the Infraspinatus?

A

O: infraspinous fossa
I: greater tubercle
A: laterally rotates, and adducts arm

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3
Q

What is the origin, insertion and action for the Teres Minor?

A

O: lateral border
I: greater tubercle
A: laterally rotates and adducts arm

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4
Q

What is the origin, insertion and action for the subscapularis?

A

O: subscapular fossa
I: lesser tubercle
A: medially rotates arm

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5
Q

What’s the joints of the rotator cuff?

A

AC (acromioclavicular joint)
SC (sternoclavicular joint)
GH (Glenohumeral joint)
ST (Scapulothoracic joint)

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