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Dorsal Branch of Subcostal Artery (Left)
Cardiovascular System

Dorsal Branch of Subcostal Artery (Left)

Ramus dorsalis arteriae subcostalis

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The dorsal branch arises from the subcostal artery near the head of the twelfth rib.


The branch travels posteriorly with the posterior ramus of the twelfth thoracic nerve.


Throughout its course it gives a series of small branches. These include spinal, cutaneous, and muscular branches.

Supplied Structures

The dorsal branch contributes to the vasculature of the spinal cord, vertebral column, muscles of the back, and the overlying fascia and skin.

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