Superior ulnar collateral artery

The superior ulnar collateral artery is a vessel arising from the brachial artery at the middle part of the arm.

Summary

  • origin: branch of the brachial artery at the middle part of the arm
  • location: medial lower arm
  • supply: elbow joint
  • main branches: posterior ulnar recurrent artery (anastamoses)
  • terminal branches: peri-articular arterial anastamoses of the elbow

Gross anatomy

Origin

The superior ulnar collateral artery arises medially from the brachial artery at approximately the middle part of the arm. It is joined by the distal aspect of the inferior ulnar collateral artery at the lower arm, when it then continues distally, passing posterior to the medial epicondyle along with the ulnar nerve 1.

Termination

After passing posterior to the medial epicondyle, an anastamoses is formed with the posterior ulnar recurrent artery near the medial aspect of the elbow joint, forming the periarticular arterial anastamoses of the elbow 1.

Supply

The superior ulnar collateral artery provides the periarticular arterial anastamoses of the elbow. This constitutes part of the blood supply to the elbow joint 1.

Upper limb anatomy
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Article Information

rID: 46639
System: Vascular
Section: Anatomy
Tags: refs, cases
Synonyms or Alternate Spellings:

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