Celiac ganglia

Source: Wikipedia, the free encyclopedia.
Celiac ganglia
Lobus caudatus), 18 Kidney
Details
Fromthoracic splanchnic nerves
Identifiers
Latinganglia coeliaca
TA98A14.3.03.027
TA26639
FMA77570 77584, 77570
Anatomical terms of neuroanatomy]

The celiac ganglia or coeliac ganglia are two large irregularly shaped masses of

digestive tract
.

They have the appearance of

suprarenal glands (also called adrenal glands). The ganglion on the right side is placed behind the inferior vena cava
.

They are sometimes referred to as the semilunar ganglia or the solar ganglia.

Neurotransmission

The celiac ganglion is part of the sympathetic prevertebral chain possessing a great variety of specific receptors and neurotransmitters such as catecholamines, neuropeptides, and nitric oxide and constitutes a modulation center in the pathway of the afferent and efferent fibers between the central nervous system and the ovary.

The main preganglion neurotransmitter of the celiac ganglion is

preaortic ganglia
.

Path

The upper part of each ganglion is joined by the

lesser splanchnic nerve and gives off the greater part of the renal plexus
.

Innervation

These ganglia contain neurons whose postganglionic axons innervate the stomach, liver, gallbladder, spleen, kidney, small intestine, and the ascending and transverse colon. They directly innervate the ovarian theca and secondary interstitial cells and exert an indirect action on the luteal cells.

Links to ovary

Modifications in the adrenergic activity of the celiac ganglion results in an altered capacity of the ovary of pregnant rats to produce progesterone, suggesting that the celiac ganglion-superior ovarian nerve-ovarian axis provides a direct link between the autonomic nervous system and the physiology of pregnancy.

Most of the fibers of the superior ovarian nerve come from the postganglionic sympathetic neurons of the celiac ganglion.

Additional images

  • Diagram of efferent sympathetic nervous system.
    Diagram of efferent sympathetic nervous system.
  • Abdominal portion of the sympathetic trunk, with the celiac and hypogastric plexuses.
    Abdominal portion of the sympathetic trunk, with the celiac and hypogastric plexuses.
  • Lower half of right sympathetic cord.
    Lower half of right sympathetic cord.

See also

References

Public domain This article incorporates text in the public domain from page 985 of the 20th edition of Gray's Anatomy (1918)

External links