Circumflex scapular artery

From Ganfyd

Jump to: navigation, search

The circumflex scapular artery is a branch of the subscapular artery.

Circumflex scapular artery

System: Arterial
Function:
Origin: Subscapular artery
Branches: Infrascapular branch, lateral branch, branches to muscles
Insertion:
Arterial supply: To deltoid, long head of triceps
Venous drainage:
Lymphatic drainage:
Innervation:
Vertebral levels:
Search for Circumflex scapular artery in Gray's.


Contents

Anatomical Course

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.

Branches

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.

Relations

In the 'triangular space':

Anastamoses

Arterial Supply to

Clinical Relevance

  • Used as a pedicle to create an osteomyocutaneous flap in plastic surgery.