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Circumflex scapular artery
From Wikipedia, the free encyclopedia
| Artery: Circumflex scapular artery | |
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| The scapular and circumflex arteries. (Scapular circumflex visible at center.) | |
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| The axillary artery and its branches. (Scap. cir. visible near center.) | |
| Latin | arteria circumflexa scapulae |
| Gray's | subject #149 588 |
| Source | subscapular artery |
| Dorlands/Elsevier | a_61/12153941 |
The circumflex scapular artery (scapular circumflex artery, dorsalis scapulae artery) is a branch of the subscapular artery and part of the scapular anastomoses.
It curves around the axillary border of the scapula, traveling through the anatomical "Triangular space" made up of the Subscapularis superiorally, the Teres major inferiorally, and the long head of the Triceps laterally.
It enters the infraspinatous fossa under cover of the Teres minor, and anastomoses with the transverse scapular artery and the descending branch of the transverse cervical.
In its course it gives off two branches:
- one (infrascapular) enters the subscapular fossa beneath the Subscapularis, which it supplies, anastomosing with the transverse scapular artery and the descending branch of the transverse cervical.
- the other is continued along the axillary border of the scapula, between the Teres major and minor, and at the dorsal surface of the inferior angle anastomoses with the descending branch of the transverse cervical.
In addition to these, small branches are distributed to the back part of the Deltoideus and the long head of the Triceps brachii, anastomosing with an ascending branch of the profunda brachii.
- circumflex+scapular+artery at eMedicine Dictionary
- SUNY Labs 03:05-0101 - "Triangular Space of Scapular Region"
- SUNY Labs 05:07-0302 - "Major Branches of the Axillary Artery"
- SUNY Figs 05:04-18 - "The axillary artery and its major branches shown in relation to major landmarks."
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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| Axillary | scapular anastomosis - 1st part superior thoracic - 2nd part thoracoacromial (deltoid branch)- lateral thoracic - 3rd part subscapular (circumflex scapular, thoracodorsal) - anterior humeral circumflex - posterior humeral circumflex |
| Brachial | profunda brachii (radial collateral, medial collateral) - superior ulnar collateral - inferior ulnar collateral |
| Radial | forearm: radial recurrent - palmar carpal branch - superficial palmar branch wrist: dorsal carpal branch (dorsal carpal arch, dorsal metacarpal, dorsal digital) hand: princeps pollicis - radial of index finger - deep palmar arch (palmar metacarpal) |
| Ulnar | forearm: anterior ulnar recurrent - posterior ulnar recurrent - common interosseous (anterior, posterior, recurrent) wrist: palmar carpal branch - dorsal carpal branch hand: superficial palmar arch (common palmar digital, proper palmar digital) - deep palmar branch - palmar carpal arch |