para-aortic body

[ păr′ə-ā-ôrtĭk ]

n.

A small mass of chromaffin tissue found near the sympathetic ganglia along the abdominal aorta.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.