para-aortic bodies

(redirected from corpus aorticum)

para-aortic bodies

 [par″ah-a-or´tik]
small masses of chromaffin cells near the sympathetic ganglia along the abdominal aorta that secrete norepinephrine. They reach their maximum size during fetal life and then degenerate during childhood as the adrenal medulla matures. Tumors of these structures produce symptoms similar to those of pheochromocytoma. Called also organs of Zuckerkandl.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

par·a-a·or·tic bod·ies

[TA]
small masses of chromaffin tissue found near the sympathetic ganglia along the aorta; they are more prominent during fetal life. The chromaffin cells secrete noradrenalin; chemoreceptive endings monitor levels of blood gases.
Farlex Partner Medical Dictionary © Farlex 2012