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2. Periaortic lymph nodes - Wikipedia

   en.wikipedia.org/wiki/Periaortic_lymph_nodes

   These lymph nodes receive drainage from the gastrointestinal tract and the abdominal organs. The periaortic lymph nodes are different from the paraaortic lymph nodes. The periaortic group is the general group, that is subdivided into: preaortic, paraaortic, and retroaortic groups. The paraaortic group is synonymous with the lateral aortic group.

3. Preaortic lymph nodes - Wikipedia

   en.wikipedia.org/wiki/Preaortic_lymph_nodes

   The inferior mesenteric lymph nodes have a subgroup of pararectal lymph nodes. The preaortic lymph nodes receive a few vessels from the lateral aortic lymph nodes, but their principal afferents are derived from the organs supplied by the three arteries with which they are associated–the celiac, superior and inferior mesenteric arteries.

4. Para-aortic lymph nodes - Wikipedia

   en.wikipedia.org/?title=Para-aortic_lymph_nodes&...

   Retrieved from "https://en.wikipedia.org/w/index.php?title=Para-aortic_lymph_nodes&oldid=922728169"

5. Aortic lymph nodes - Wikipedia

   en.wikipedia.org/wiki/Aortic_lymph_nodes

   Aortic lymph nodes may refer to: Lateral aortic lymph nodes; Paraaortic lymph node; Retroaortic lymph nodes This page was last edited on 13 ...

6. Organ of Zuckerkandl - Wikipedia

   en.wikipedia.org/wiki/Organ_of_Zuckerkandl

   The organ of Zuckerkandl is of pathological significance in the adult as a common extra-adrenal site of pheochromocytoma though the most common extra-adrenal site is in the superior para-aortic region between the diaphragm and lower renal poles. [9] Extra-adrenal tumors account for around 25% of all cases of pheochromocytoma. [10]

7. Atrioventricular node - Wikipedia

   en.wikipedia.org/wiki/Atrioventricular_node

   Isolated heart conduction system showing atrioventricular node. The AV node receives two inputs from the right atrium: posteriorly, via the crista terminalis, and anteriorly, via the interatrial septum. [8] Contraction of heart muscle cells requires depolarization and repolarization of their cell membranes. Movement of ions across cell ...