What Is the Celiac Plexus?

The celiac plexus is a vegetative plexus that is located around the celiac trunk and the superior mesenteric artery roots. It contains sympathetic ganglia such as celiac ganglia, superior mesenteric ganglia, and aortic renal ganglia. After the sympathetic ganglion fibers from the large and small splanchnic nerves are replaced in these ganglia, the postganglionic fibers and parasympathetic fibers from the vagus nerve form a peritoneal plexus, and then they surround the blood vessels and are distributed along the blood vessels in the liver and gallbladder. , Pancreas, spleen, kidney, adrenal glands and colonic left bowel.

The celiac plexus is a vegetative plexus that is located around the celiac trunk and the superior mesenteric artery roots. It contains sympathetic ganglia such as celiac ganglia, superior mesenteric ganglia, and aortic renal ganglia. After the sympathetic ganglion fibers from the large and small splanchnic nerves are replaced in these ganglia, the postganglionic fibers and parasympathetic fibers from the vagus nerve form a peritoneal plexus, and then they surround the blood vessels and are distributed along the blood vessels in the liver and gallbladder. , Pancreas, spleen, kidney, adrenal glands and colonic left bowel.

Chinese name

Celiac plexus

Foreign name

coeliac plexus

Celiac Plexus Anatomy:

1. Celiac plexus:

The celiac plexus, also called solarplexus, is the largest visceral plexus, located in front of the upper segment of the abdominal aorta, surrounding the roots of the celiac artery and the superior mesenteric artery. There are a pair of celiac ganglia in the plexus, which receive the preganglionic fibers from the large splanchnic nerve; the lower side of the ganglion is particularly prominent, called the aortic renal ganglia, and the preganglionic fibers from the small splanchnic nerve are received. Some are postganglionic fibers, but a small amount of them are still preganglionic fibers. They then exchange neurons in the ganglia (such as the superior and inferior mesenteric ganglia) in the paraplex separated by the abdominal plexus. The perivaginal branches of the posterior vagus nerve participate in the formation of many accessory plexuses, such as the liver plexus, gastric plexus, spleen plexus, pancreatic plexus, renal plexus, and superior and inferior mesenteric plexus. Each auxiliary plexus reaches each organ along the branch of the same name blood vessel.

2, abdominal cavity:

The abdominal cavity is the part of the body cavity inside the abdomen. The abdominal cavity of the human body is located below the iliac crest, above the pelvic cavity, and continues with the pelvic cavity. There is a serous layer around the abdominal cavity called the peritoneum. The main organs in the abdominal cavity are organs of the digestive system that secrete the urinary system. The digestive system includes cavity organs such as stomach, intestine, gallbladder, etc. and parenchymal organs such as liver, spleen, and pancreas. When the bladder is full and the uterus rises from the pelvis in the second trimester, it becomes an abdominal organ. The anatomical "peritoneal cavity" can be completely separated from the "peritoneal cavity", and the "abdominal cavity" in practical applications generally refers to the "peritoneal cavity". The difference between men and women in the abdominal cavity is that men's peritoneal cavity is completely closed and has no communication with the outside world; women's peritoneal cavity is connected with the outside world through the fallopian tube, uterus and vagina. There is a small amount of slurry in the normal abdominal cavity, which acts as a lubricant. [1]

Celiac plexus and celiac related diseases:

Celiac infection:

Overview:

This group of diseases includes acute cholecystitis and biliary tract infection, bacterial liver abscess, acute peritonitis, and secondary bacterial infection of acute pancreatitis. It is usually a mixed infection of Enterobacteriaceae, Enterococcus and Bacteroides.

Treatment principles

(1) Relevant specimens should be taken as far as possible for culture before antibacterial drug treatment, and drug sensitivity tests should be performed after the pathogens have been obtained as a basis for adjusting medication.

(2) Start empirical treatment of antibacterial drugs as soon as possible. Empiric treatment requires the use of drugs that can cover intestinal gram-negative bacilli, enterococcus and other aerobic bacteria and anaerobes such as fragile bacteroides.

(3) Acute pancreatitis itself is a chemical inflammation and there is no indication for the application of antibacterial drugs; antibacterial drugs are needed for secondary bacterial infections.

(4) The drainage of the lesion must be kept clear. Those with surgical indications should undergo surgical treatment, and specimens of lesions should be collected for bacterial culture and drug sensitivity tests during the procedure.

(5) Intravenous administration is required for initial treatment, and can be changed to oral or intramuscular injection after the condition improves.

[Pathogen treatment]

After clarifying the pathogenic bacteria, adjust the medication according to the empirical treatment effect and the results of bacterial drug sensitivity tests.