Cystic plexus

Cystic Plexus refers to a network of nerve fibers located in the vicinity of the gallbladder. This plexus is primarily involved in the regulation of the gallbladder's functions, including the storage and release of bile, a digestive fluid produced by the liver. The cystic plexus is an important component of the autonomic nervous system's control over the biliary system, playing a crucial role in the digestive process.

Structure

The cystic plexus is formed by the contributions from the celiac plexus and vagus nerve. It consists of a mesh-like structure of nerve fibers that surround the cystic duct and gallbladder. These nerve fibers are responsible for conveying sensory and motor signals between the gallbladder and the central nervous system.

Function

The primary function of the cystic plexus is to regulate the contraction and relaxation of the gallbladder. When food enters the stomach, the gallbladder is stimulated to contract by signals from the cystic plexus, leading to the release of bile into the duodenum to aid in the digestion of fats. The cystic plexus also plays a role in sensing the presence of cholecystokinin, a hormone released by the small intestine in response to the presence of fats, which further stimulates gallbladder contraction.

Clinical Significance

Disorders of the cystic plexus can lead to various gallbladder diseases, including gallstones, cholecystitis, and biliary dyskinesia. Symptoms of these conditions may include pain in the upper right abdomen, nausea, and vomiting. Diagnosis of cystic plexus-related disorders typically involves imaging studies such as ultrasound or MRI, and treatment may include medication, dietary changes, or surgery, depending on the severity and nature of the condition.

See Also

• Autonomic nervous system
• Biliary system
• Gallbladder disease
• Nerve plexus