Lumbar arteries

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Artery: Lumbar arteries

The veins of the right half of the male pelvis. (Lumbar arteries not labeled, but third lumbar vein labeled at center top.)
Latin	arteriae lumbales
Gray's	subject #154 612
Supplies	Quadratus lumborum
Source	abdominal aorta
Vein	Lumbar veins
Dorlands/Elsevier	a_61/12154932

The lumbar arteries are in series with the intercostals.

They are usually four in number on either side, and arise from the back of the aorta, opposite the bodies of the upper four lumbar vertebræ.

A fifth pair, small in size, is occasionally present: they arise from the middle sacral artery.

They run lateralward and backward on the bodies of the lumbar vertebræ, behind the sympathetic trunk, to the intervals between the adjacent transverse processes, and are then continued into the abdominal wall.

The arteries of the right side pass behind the inferior vena cava, and the upper two on each side run behind the corresponding crus of the diaphragm.

The arteries of both sides pass beneath the tendinous arches which give origin to the Psoas major, and are then continued behind this muscle and the lumbar plexus.

They now cross the Quadratus lumborum, the upper three arteries running behind, the last usually in front of the muscle.

At the lateral border of the Quadratus lumborum they pierce the posterior aponeurosis of the Transversus abdominis and are carried forward between this muscle and the Obliquus internus.

They anastomose with the lower intercostal, the subcostal, the iliolumbar, the deep iliac circumflex, and the inferior epigastric arteries.

The relations of the viscera and large vessels of the abdomen.

lumbar+arteries at eMedicine Dictionary
SUNY Labs 40:11-0201 - "Branches of the Abdominal Aorta"
Atlas of anatomy at UMich abdo_wall75 - "The Abdominal Aorta"
SUNY Figs 40:05-07 - "Parietal and visceral branches of the abdominal aorta."

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v • d • e

List of arteries of torso - abdomen

AA:
Anterior

celiac	left gastric: esophageal branches splenic: pancreatic branches (greater, dorsal) – short gastric – left gastro-omental common hepatic: proper hepatic (cystic), right gastric, gastroduodenal (right gastro-omental, superior pancreaticoduodenal, supraduodenal)
SMA	inferior pancreaticoduodenal – intestinal (jejunal, ileal, arcades, vasa recta) – ileocolic (colic, anterior cecal, posterior cecal, ileal branch, appendicular) – right colic – middle colic
IMA	left colic – sigmoid – superior rectal – marginal