Cardiovascular System
Dorsal Branch of Subcostal Artery (Left)
Ramus dorsalis arteriae subcostalis
Read moreQuick Facts
Origin: Subcostal artery.
Course: Posteriorly.
Branches: Spinal branch, medial, and lateral cutaneous branches.
Supplied Structures: Spinal cord and meninges, intrinsic and extrinsic muscles of the back and skin.
Related parts of the anatomy
Origin
The dorsal branch arises from the subcostal artery near the head of the twelfth rib.
Course
The branch travels posteriorly with the posterior ramus of the twelfth thoracic nerve.
Branches
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.
