AXILLARY ARTERY
- Begins at the outer border of 1st rib as continuation of the subclavian artery.
- Ends at the lower border of teres major by becoming the brachial artery.
- It is divided by pectoralis minor into 3 parts:
- 1st → medial to the muscle
- 2ed → behind " "
- 3ed → lateral " ".
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Branches
- 1st part
- Superior thoracic artery
- S: Pectoral muscle
- 2ed part
- Thoraco-acromial artery
- A Acromial artery
- P Pectoral art.
- C clavicular art.
- D Deltoid art.
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- Lateral thoracic artery
- S: Pectorales muscles + Serratus anterior + mammaries
- 3ed part
- Subscapular artery ← Largest branch
- Thoracodorsal artery
- S: latissimus dorsi muscl
- circumflex scapular artery.
- Anterior Circumflex humeral
- Post. circum. humeral.
BRACHIAL ARTERY
- It is a continuation of Axillary artery at lower border of teres major muscle.
- ends at the level of neck of radius by giving radial and Ulnar arteries (for the forearm).
- Runs along with the median nerve (but the median nerve more superficially) and brachial vein.