Circumflex scapular artery
The circumflex scapular artery is a branch of the subscapular artery.
|Circumflex scapular artery|
|Branches:||Infrascapular branch, lateral branch, branches to muscles|
|Arterial supply:||To deltoid, long head of triceps|
|Search for Circumflex scapular artery in Gray's.|
The artery is a branch of the subscapular artery. It curves backwards to cross the lateral scapular border, entering a small 'triangular space' (NB different from the triangular space). It enters the infraspinous fossa deep to teres minor where it gives off numerous branches, before supplying the skin above this area.
The artery often gives off two branches in the infraspinous fossa. One infrascapular branch returns to the subscapular fossa to anastamose with several arteries; the other lateral branch continues along the lateral scapular border between teres major and teres minor. Smaller branches supply individual muscles.
In the 'triangular space':
- Suprascapular artery - infrascapular branch
- Dorsal scapular artery - infrascapular branch
- Deep branch of the transverse cervical artery - lateral branch
- Ascending branch of profunda brachii - small branches
Arterial Supply to
- Used as a pedicle to create an osteomyocutaneous flap in plastic surgery.