Dorsal Branch of Fourth Lumbar Artery (Left)
Ramus dorsalis arteriae lumbalis quartae
Read moreQuick Facts
Origin: Lumbar artery.
Course: Posteriorly.
Branches: Spinal branches, cutaneous branches, and muscular branches.
Supplied Structures: Spinal cord, vertebral column, and muscles and skin of the back.
Origin
The dorsal branches arise from the lumbar arteries, close to their origin.
Course
The dorsal branches course posteriorly between the transverse processes of the adjacent vertebrae.
Branches
The dorsal branches of the lumbar arteries contribute to the vasculature of the spinal cord, vertebral column, muscles of the back, and the overlying fascia and skin.
Supplied Structures
The dorsal branch contributes to the vasculature of the spinal cord, the vertebral column, the muscles of the back, and the overlying fascia and skin.
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Lumbar Artery
The lumbar arteries are paired vessels that arise from the posterior wall of the abdominal aorta at the levels of the lumbar vertebrae.
