The artery profunda brachii (arteria profunda brachii) is a branch of the brachial artery.
Arteries around the elbow including the profunda brachii and its branches (confusingly the radial collateral branch is labelled as the anterior branch here and the medial collateral as radial collateral)
|Branches:||Nutrient, deltoid, middle collateral, radial collateral|
|Arterial supply:||Humerus, anconeus, deltoid, triceps, brachioradialis, brachialis|
|Search for Profunda brachii in Gray's.|
The artery arises from the posteromedial side of the brachial artery soon after passing distally to teres major. It passes posteriorly between the long and medial heads of triceps, lying close to the radial nerve. It lies in the posterior groove of the humerus, alongside the radial nerve and deep to triceps. It divides into its terminal branches within the groove.
The profunda brachii has four branches, excepting its muscular branches.
The deltoid branch (ascending branch) ascends between the lateral and long heads of triceps to anastamose with the posterior circumflex humeral artery.
Middle collateral branch
The middle collateral branch (posterior descending branch) arises below the humerus and descends with the medial head of triceps to the elbow, where it anastamoses with the interosseous recurrent artery. It supplies a small branch to anconeus.
Radial collateral branch
A continuation of the artery, it accompanies the radial nerve through the intermuscular septum to run down between brachioradialis and brachialis to anastamose with the radial recurrent artery anterior to the lateral epicondyle.
- Long and lateral heads of triceps
Middle collateral branch:
Radial collateral branch:
- Posterior circumflex humeral artery (deltoid branch)
- Interosseous recurrent artery (middle collateral branch)
- Radial recurrent artery (Radial collateral branch)
Arterial Supply to
- Humerus (nutrient branch)
- Deltoid (deltoid branch)
- Anconeous (middle collateral branch)
- Brachioradialis (radial collateral branch)
- Brachialis (radial collateral branch)
- The nutrient branch may be absent
- The branch to anconeus may be absent