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a.1.(Anat.) In front, or on the ventral side, of the aorta.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
For a left-sided template, lymph node packets are removed from the left common iliac nodes, preaortic, paraaortic, and retroaortic areas.
The hypogastric nerves, which arise from the preaortic sympathetic plexus, divide to the left and right within the pelvis, forming the pelvic autonomic nerve plexus upon meeting the parasympathetic sacral splanchnic nerves that originate from the second, third, and fourth sacral foramina along the pelvic wall [5].Therefore, any injury to the pelvic splanchnic or iliohypogastric nervous system causes a dysfunction in micturition.
Kumar, "Right double inferior vena cava (IVC) with preaortic iliac confluence-case report and review of literature," Journal of Clinical and Diagnostic Research, vol.
From these nodes, lymph passes to the coeliac group of preaortic nodes.
Type I and II, have obliterated ventral preaortic limb with dorsal limb continuing as RLRV either in orthotopic position in Type I variant, whereas, it joins inferiorly with IVC in Type II variant.
Most frequently, right-sided tumors spread to the aortocaval nodes, precaval nodes and right paracaval and retrocaval nodes, while left-sided tumors usually spread to the left paraaortic nodes and preaortic nodes.
It is generally agreed that the predominant drainage pattern from the kidney is cephalad posterior and medial, (15) and that the favored primary lymphatic drainage from the right kidney is the paracaval, precaval, retrocaval, and interaortocaval LNs, whereas from the left kidney it is the para-aortic, preaortic, retroaortic, and interaortocaval LNs.
The deep drainage pathways of the abdominal organs drain lymph to the nodes, and situated along it are arteries to preaortic nodes.
Some drainage also occurs to the pancreaticoduodenal nodes and the superior mesenteric preaortic nodes.