Deep brachial artery

The deep brachial artery or profunda brachii artery is a large branch of the brachial artery, located in the arm. 

  • origin: brachial artery
  • location: posterior aspect of the arm
  • supply: triceps brachii
  • main branches: middle collateral and radial collateral arteries

The deep brachial artery is a branch of the brachial artery, originating from the posteromedial aspect, distal to teres major1.


The deep brachial artery courses through the radial groove close to the radial nerve, first between the long and medial heads and then deep to the lateral head in the spiral groove before it divides into its terminating branches1,2.


The main branches of the deep brachial artery are its two terminal branches, the middle collateral and radial collateral arteries1,2. They arise in the posterior muscle compartment at the middle part of the arm.


The deep brachial artery primarily supplies the triceps brachii. It can also provide supply to the nutrient artery of the humerus1,2.

The origin of the deep brachial artery may vary. It may arise at the same origin of the posterior circumflex humeral artery (separately), or from the axillary artery, either proximal to the lattismus dorsi tendon or at the distal aspect of the artery1.

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Article Information

rID: 51741
Section: Anatomy
Synonyms or Alternate Spellings:
  • profunda brachii artery

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