The Shoulder Muscles: Posterior/Cuffs Flashcards by Charlene Enriquez

Q

triceps brachii long head (origin)

A

infraglenoid tubercle of scap

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Q

triceps brachii long head (insertion)

A

proximal end of olecranon

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Q

triceps brachii long head (action)

A

extension of forearm
extension of shoulder

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Q

triceps brachii LONG/LATERAL/MEDIAL HEAD (nerve)

A

radial nerve

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Q

triceps brachii LONG/LATERAL/MEDIAL HEAD (blood)

A

brachial artery (profunda)

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Q

triceps brachii lateral head (origin)

A

posterior surface of humerus above and lateral to groove of radial nerve

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Q

triceps brachii lateral head (insertion)

A

proximal end of olecranon

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Q

triceps brachii lateral head (action)

A

extension of forearm

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Q

triceps brachii medial head (origin)

A

posterior surface of humerus below and medial groove of radial nerve

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Q

triceps brachii medial head (insertion)

A

proximal end of olecranon

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Q

triceps brachii medial head (action)

A

extension of forearm

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Q

teres major (origin)

A

inferior angle of scap

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Q

teres major (insertion)

A

medial lip of intertubercular groove

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Q

teres major (action)

A

ADDuction
medial rotation
extension of arm

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Q

teres major (nerve)

A

lower subscapular nerve

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Q

teres major (blood)

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A

circumflex scapular

Q

teres minor (origin)

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A

upper 2/3 of lateral border of scapula

Q

teres minor (insertion)

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A

greater tubercle below infraspinatus

Q

teres minor (action)

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A

lateral rotation of arm

Q

teres minor (nerve)

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A

axillary nerve

Q

teres minor (blood)

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A

circumflex scapular

Q

subscapularis (origin)

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A

subscapular fossa of scapula

Q

subscapularis (insertion)

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A

lesser tubercle and crest

Q

subscapularis (action)

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A

medial rotation of arm

subscapularis (nerve)

upper and lower subscapular nerve

subscapularis (blood)

lateral thoracic and subscapular

infraspinatus (origin)

infraspinous fossa of scapula

infraspinous (insertion)

greater tubercle below supraspinatus

infraspinatus (action)

lateral rotation of arm

infraspinatus (nerve)

suprascapular nerve

infraspinatus (blood)

suprascapular and circumflex scapular

supraspinatus (origin)

supraspinous fossa of scap

supraspinatus (insertion)

greater tubercle

supraspinatus (action)

ABDuction of arm

supraspinatus (nerve)

suprascapular nerve

supraspinatus (blood)

suprascapular