paraganglion

paraganglion

 [par″ah-gang´gle-on] (pl. paragan´glia)

a collection of chromaffin cells, derived from neural ectoderm, occurring outside of the adrenal medulla, most commonly near the sympathetic ganglia and in relation to the aorta and its branches. Most, if not all, of the paraganglia secrete epinephrine or norepinephrine.

par·a·gan·gli·on

, pl.

par·a·gan·gli·a

(par'ă-gang'glē-on, -ă),

A small, rounded body containing chromaffin cells; a number of such bodies may be found retroperitoneally near the aorta and in organs, for example, kidney, liver, heart, and gonads.

Synonym(s): chromaffin body

paraganglion

/para·gan·gli·on/ (-gang´gle-on) pl. paragan´glia   a collection of chromaffin cells derived from neural ectoderm, occurring outside the adrenal medulla, usually near the sympathetic ganglia and in relation to the aorta and its branches.

paraganglion

[-gang′glē·on] pl. paraganglia

Etymology: Gk, para + ganglion, knot

any one of the small groups of chromaffin cells associated with the ganglia of the sympathetic nerve trunk and situated outside the adrenal medulla, most often near the sympathetic ganglia along the aorta and its branches. The paraganglia are also connected with the ganglia of the celiac, renal, suprarenal, aortic, and hypogastric plexuses. The paraganglia secrete the hormones epinephrine and norepinephrine. Also called chromaffin body. See also chromaffin cell.

par·a·gan·gli·on

, pl. paraganglia (par'ă-gang'glē-ŏn, -ă)

A small, roundish body containing chromaffin cells; a number of such bodies may be found retroperitoneally near the aorta and in organs such as the kidney, liver, heart, and gonads.
Synonym(s): chromaffin body.

paraganglion

pl. paraganglia [Gr.] a collection of chromaffin cells derived from neural ectoderm, occurring outside the adrenal medulla, usually near the sympathetic ganglia and in relation to the aorta and its branches. Most secrete epinephrine or norepinephrine.