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Inferior Ulnar Collateral Artery
Cardiovascular System

Inferior Ulnar Collateral Artery

Arteria collateralis ulnaris inferior

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Quick Facts

Origin: Brachial artery.

Course: Distally from the anterior to the posterior aspect of the humerus.

Branches: Unnamed branches.

Supplied Structures: Elbow joint.

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Origin

The inferior ulnar collateral artery arises from the brachial artery approximately 5 cm above the elbow joint (Standring, 2016).

Course

It courses inferiorly along the brachialis, then becomes deep to the brachialis. It curves around the distal humerus and divides into an anterior and a posterior branch.

Branches

The inferior ulnar collateral artery gives an anterior and a posterior branch which anastomose with the anterior ulnar recurrent artery respectively (Standring 2016).

Supplied Structures

It contributes to anastomotic network that supplies the elbow joint.

References

Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41st edn.: Elsevier Limited.

Learn more about this topic from other Elsevier products

Ulnar Artery

ScienceDirect image

The ulnar artery also commences from 1 cm below the center of the antecubital fossa to a point on the second line that is at the junction between the proximal and middle thirds.

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