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Anatomy Upper Extremity > Pectoral Girdle > Flashcards

Pectoral Girdle Flashcards

1
Q

Axillary Artery

A

Source = subclavian artery
Continues as brachial artery
Branches: Superior thoracic artery, thoracoacromial artery, lateral thoracic artery, subscapular artery, anterior circumflex humeral artery, posterior circumflex humeral artery

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2
Q

Thoracoacromial Artery

A

Source: Axillary artery
Branches: Clavicular branch, Acromial branch, Deltoid branch, Pectoral Branch

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3
Q

Subscapular Artery

A

Source: Axillary artery
Branches: circumflex scapular artery, thoracodorsal artery

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4
Q

Triangular Space

A 
Teres minor (top), teres major (bottom), long head of triceps (side)
Contains circumflex scapular artery
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5
Q

Quadrangular Space

A 
Teres minor (top), teres major (bottom), long head of triceps (side), humerus (side)
Contains axillary nerve, posterior circumflex artery
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6
Q

Triangular interval

A 
Teres major (top), long head of triceps (side), humerus (side)
Contains profunda brachii artery, radial nerve
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7
Q

Triangle of Auscultation

A

Scapula (side), latissimus dorsi (bottom), trapezius (top)
Over 7th rib and 6-7 intercostal space
Good place to listen to posterior segment of lungs

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8
Q

Profunda Brachii Artery

A

Source: Brachial artery
Location: In triangular interval with radial nerve

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9
Q

Artery of trapezius

A

Transverse cervical branch of thyrocervical artery

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10
Q

Suprascapular Artery

A

Branch of thyrocervical trunk, branch of subclavian artery

Perfuses supraspinatus and infraspinatus

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11
Q

Innvervate pectoralis minor

A

Medial pectoral nerve (from medial cord of brachial plexus)

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12
Q

Posterior Cord of brachial plexus

A

From posterior branches of Superior trunk, Middle trunk, and Inferior Trunk
Branches into Upper subscapular nerve, Thoracodorsal nerve, Lower subscapular nerve
Continues into Axillary nerve and Radial nerve

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13
Q

Lateral Cord of brachial plexus

A

From anterior branches of Superior trunk and Middle trunk
Branches into Lateral pectoral nerve
Continues into Musculocutaneous nerve
Joins with Medial cord to form Median nerve

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14
Q

Medial Cord of brachial plexus

A

From anterior branch of Inferior trunk
Branches into Medial pectoral nerve
Joins with Lateral cord to form Median nerve
Continues as ulnar nerve

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15
Q

Dorsal scapular artery

A

Source = subclavian artery

Perfuses levator scapulae, rhomboid minor, rhomboid major

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16
Q

Rotator cuff muscles

A

Supraspinatus
Infraspinatus
Teres minor
Subscapularis

17
Q

Pectoralis major

A

Perfused thoracoacromial trunk (from axillary artery), pectoral branch
Innervated by medial pectoral nerve (from medial cord) and lateral pectoral nerve (from lateral cord)

18
Q

Pectoralis minor

A

Perfused by thoracroacromial trunk (from axillary artery), pectoral branch
Innervated by medial pectoral nerve (from medial cord)

19
Q

Serratus anterior

A

Perfused by lateral thoracic artery (from axillary artery)

Innervated by long thoracic artery (C5, C6, C7 roots of brachial plexus)

20
Q

Trapezius

A

Perfused by transverse branch of thyrocervical artery (from subclavian artery)
Innervated by spinal accessory nerve (CN11)

21
Q

Latissimus Dorsi

A

Perfused by thoracodorsal artery (branch of subscapular artery from axillary artery)
Innervated by thoracodorsal nerve (posterior cord between Upper subscapularis and Lower subscapularis nerve)

22
Q

Levator Scapulae

A

Perfused by dorsal scapular artery (from Subclavian artery)

Innervated dorsal scapular nerve (branch of C5 root)

23
Q

Rhomboids Major and Minor

A

Perfused by dorsal scapular artery

Innervated by dorsal scapular nerve

24
Q

Deltoid

A

Perfused by thoracoacromial trunk, deltoid branch

Innervated by axillary nerve

25
Q

Teres major

A

Perfused by thoracodorsal artery, circumflex scapular artery, which are both branches of subscapular atery
Innervated by lower subscapular nerve (branch of posterior cord)

26
Q

Supraspinatus

A

Perfused by suprascapular artery (from thyrocervical trunk of subclavian artery)
Innervated by suprascapular nerve (C5 root)

27
Q

Infraspintatus

A

Perfused by suprascapular artery

Innervated by suprascapular nerve

28
Q

Teres minor

A

Perfused by circumflex scapular artery and posterior circumflex humeral artery
Innervated by axillary nerve

29
Q

Subscapularis

A

Perfused by subscapular artery

Innervated by upper subscapular and lower subscapular nerve

Anatomy Upper Extremity (1 decks)

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