vessels of upper limb

axillary artery

major source of blood supply to entire upper limb

continuation of subclavian after rib 1

3 parts

part 1 of axillary artery

proximal to pectoralis major

1 branch (superior thoracic artery)

part 2 of axillary artery

posterior to pectoralis minor

2 branches (thoraco-acromial and lateral thoracic arteries)

third part of axillary artery

distal to axillary artery

3 branches (subscapular and anterior and posterior circumflex humeral arteries)

superior thoracic artery

arises from first part of axillary artery

supplies superior regions of medial and axillary walls

thoraco-acromial artery

arises from second part of axillary artery

penetrates clavipectoral fascia

supplies anterior axillary wall and related regions

lateral thoracic artery

arises from second part of axillary artery

supplies medial and lateral anterior walls of axilla (and in females breast)

subscapular artery

arises from third part of axillary artery

supplies posterior wall of axilla (supraspinatus and infraspinatus)

2 branches (circumflex scapular and thoracodorsal arteries)

circumflex scapular artery

branch of subscapular artery

passes through triangular fossa and enters infraspinatus fossa

thoracodorsal artery

branch of subscapular artery

goes to inferior angle of scapula

anterior circumflex humeral artery

arises from third part of axillary artery

supplies anterior glenohumeral joint and head of humerus

posterior circumflex humeral artery

arises from third part of axillary artery

supplies surgical neck of humerus, glenohumeral joint, and surrounding muscles

brachial artery

arises as continuation of axillary artery at lower border of teres major

divides into radial and ulnar arteries distal to elbow

profunda brachii artery

largest branch of brachial artery

supplies muslces adjacent to elbow

basilic vein

originates from medial side of dorsal venous network of hand

drains posterolateral hand and forearm

becomes axillary vein

cephalic vein

originates over anatomical snuffbox

drains posterior and lateral hand, forerm, and arm

drains into axillary vein

median cubital vein

connects basilic and cephalic veins in anterior elbow along roof of cubital fossa

paired brachial veins

drain into either superior basilic or inferior axillary

axillary vein

continuation of basilic vein at lower border of teres major

becomes subclavian at rib 1

posterior interosseous artery

branch off common interosseous

descends to supply structures of posterior forearm