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)

A

circumflex scapular

Q

teres minor (origin)

A

upper 2/3 of lateral border of scapula

Q

teres minor (insertion)

A

greater tubercle below infraspinatus

Q

teres minor (action)

A

lateral rotation of arm

Q

teres minor (nerve)

A

axillary nerve

Q

teres minor (blood)

A

circumflex scapular

Q

subscapularis (origin)

A

subscapular fossa of scapula

Q

subscapularis (insertion)

A

lesser tubercle and crest

Q

subscapularis (action)

A

medial rotation of arm

Q

subscapularis (nerve)

A

upper and lower subscapular nerve

Q

subscapularis (blood)

A

lateral thoracic and subscapular

Q

infraspinatus (origin)

A

infraspinous fossa of scapula

Q

infraspinous (insertion)

A

greater tubercle below supraspinatus

Q

infraspinatus (action)

A

lateral rotation of arm

Q

infraspinatus (nerve)

A

suprascapular nerve

Q

infraspinatus (blood)

A

suprascapular and circumflex scapular

Q

supraspinatus (origin)

A

supraspinous fossa of scap

Q

supraspinatus (insertion)

A

greater tubercle

Q

supraspinatus (action)

A

ABDuction of arm

Q

supraspinatus (nerve)

A

suprascapular nerve

Q

supraspinatus (blood)

A

suprascapular