Celiac plexus

Celiac Plexus

The celiac plexus (also known as the solar plexus) is a complex network of nerves located in the abdomen, near where the celiac trunk, superior mesenteric artery, and renal arteries branch from the aorta. It is behind the stomach and the pancreas.

Anatomy

The celiac plexus is the largest of the autonomic plexuses and is located at the level of the first lumbar vertebra. It is formed by the greater and lesser splanchnic nerves and branches from the anterior rami of the tenth, eleventh, and twelfth thoracic nerves.

Function

The celiac plexus innervates most of the abdominal viscera. It plays a key role in the regulation of many abdominal functions, including the secretion of digestive enzymes and the contraction of the intestinal muscles. It also carries sensory information from the abdominal organs to the central nervous system.

Clinical significance

Blockage or damage to the celiac plexus can cause severe pain and other symptoms, such as nausea and vomiting. This is often seen in conditions such as pancreatitis and abdominal cancer. A procedure known as a celiac plexus block can be used to alleviate this pain.

See also

• Autonomic nervous system
• Celiac disease
• Celiac trunk
• Splanchnic nerves

References

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