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Deep artery of arm

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Title: Deep artery of arm  
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Subject: Deep artery, Radial nerve, Body of humerus
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Deep artery of arm

Profunda brachii
Diagram of the anastomosis around the elbow-joint. (A. profunda brachii labeled at upper right.)
Latin arteria profunda brachii
Supplies (deltoid muscle)
triceps brachii
brachial artery
radial collateral
medial collateral
branches to the deltoid muscle
Gray's p.591
Anatomical terminology

The arteria profunda brachii (also known as deep artery of the arm and the deep brachial artery) is a large vessel which arises from the lateral and posterior part of the brachial artery, just below the lower border of the Teres major.


  • Course 1
  • Branches and anastomoses 2
  • Additional images 3
  • References 4
  • External links 5


It follows closely the radial nerve, running at first backward between the long and medial[1] heads of the triceps brachii, then along the groove for the radial nerve (the radial sulcus), where it is covered by the lateral head of the triceps brachii, to the lateral side of the arm; there it pierces the lateral intermuscular septum, and, descending between the brachioradialis and the brachialis to the front of the lateral epicondyle of the humerus, ends by anastomosing with the radial recurrent artery.

Branches and anastomoses

It gives branches to the deltoid muscle (which, however, primarily is supplied by the posterior circumflex humeral artery) and to the muscles between which it lies; it supplies an occasional nutrient artery which enters the humerus behind the deltoid tuberosity.

A branch ascends between the long and lateral heads of the triceps brachii to anastomose with the posterior humeral circumflex artery; the medial collateral artery, a branch, descends in the middle head of the triceps brachii and assists in forming the anastomosis above the olecranon of the ulna; and, lastly, a radial collateral artery runs down behind the lateral intermuscular septum to the back of the lateral epicondyle of the humerus, where it anastomoses with the interosseous recurrent and the inferior ulnar collateral arteries.

Additional images


  1. ^!/content/book/3-s2.0-B9780443066849500548?scrollTo=%23hl0001177

External links

  • profunda%20brachii%20artery at eMedicine Dictionary
  • lesson4arteriesofarm at The Anatomy Lesson by Wesley Norman (Georgetown University)

This article incorporates text from a public domain edition of Gray's Anatomy.

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