Vessel
Axillary artery
Artery of the axilla
High-yield
Three parts by pectoralis minor (1/2/3 branches); the posterior circumflex humeral artery accompanies the axillary nerve in the quadrangular space.
Overview
The continuation of the subclavian artery through the axilla, divided into three parts by pectoralis minor, that becomes the brachial artery at the lower border of teres major.
Reference facts
- Type
Muscular artery
- Origin
Subclavian artery
- Branches / tributaries
Superior thoracic; Thoracoacromial; Lateral thoracic; Subscapular; Anterior and posterior circumflex humeral arteries
- Supplies
Shoulder region, axilla, and proximal upper limb
- Course
Runs from the outer border of the first rib through the axilla, becoming the brachial artery at the inferior border of teres major