| lumbar | of or relating to or near the part of the back between the ribs and the hipbones |
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| lumbar | one of four or five pairs of arteries that originate in the abdominal aorta and supply the lumbar vertebrae and the back muscles and abdominal wall |
| lumbar | any of five pairs of spinal nerves emerging from the lumbar section of the spinal cord |
| lumbar | a plexus of nerves formed by the ventral branches of the first four lumbar nerves |
| lumbar | a lymphatic plexus located along the lower portion of the aorta and iliac vessels |
| lumbar | removal by centesis of fluid from the subarachnoid space of the lumbar region of the spinal cord for diagnostic or therapeutic purposes |
| lumbar | veins that drain the posterior body wall and the lumbar vertebral venous plexuses |
| lumbar | one of 5 vertebrae in the human vertebral column |