| Deep artery of arm | |
|---|---|
 Diagram of theanastomosis around theelbow-joint. (A. profunda brachii labeled at upper right.) | |
| Details | |
| Source | Brachial artery |
| Branches | Radial collateral medial collateral branches to thedeltoid muscle |
| Supplies | Deltoid muscle, triceps brachii,anconeus |
| Identifiers | |
| Latin | arteria profunda brachii |
| TA98 | A12.2.09.020 |
| TA2 | 4634 |
| FMA | 22695 |
| Anatomical terminology | |
Thedeep artery of arm (also known asdeep brachial artery) is a large artery of the arm which arises from thebrachial artery. It descends in the arm before ending byanastomosing with theradial recurrent artery.
The deep artery of arm arises from the posterolateral aspect of thebrachial artery, just below the lower border of theteres major.[citation needed]
It follows closely theradial nerve, running at first backward between the long and medial[1] heads of thetriceps brachii, then along the groove for theradial nerve (theradial sulcus), where it is covered by the lateral head of the triceps brachii, to the lateral side of the arm; there it pierces thelateral intermuscular septum, and, descending between thebrachioradialis and thebrachialis to the front of thelateral epicondyle of the humerus, ends by anastomosing with theradial recurrent artery.
It gives branches to thedeltoid muscle (which, however, primarily is supplied by theposterior circumflex humeral artery) and to the muscles between which it lies; it supplies an occasionalnutrient artery which enters thehumerus behind thedeltoid tuberosity.
A branch ascends between the long and lateral heads of thetriceps brachii to anastomose with theposterior humeral circumflex artery; themedial collateral artery, a branch, descends in the middle head of the triceps brachii and assists in forming the anastomosis above theolecranon of theulna; and, lastly, aradial collateral artery runs down behind thelateral intermuscular septum to the back of the lateral epicondyle of the humerus, where it anastomoses with theinterosseous recurrent and theinferior ulnar collateral arteries.
This article incorporates text in thepublic domain frompage 591 of the 20th edition ofGray's Anatomy(1918)
