Vagus ganglion

Vagus Ganglion

The Vagus Ganglion (also known as the Inferior Ganglion or Nodose Ganglion) is a sensory ganglion of the vagus nerve located in the neck. It is one of the two ganglia of the vagus nerve, the other being the superior ganglion.

Etymology

The term "Vagus" is derived from the Latin word for "wandering". This is because the vagus nerve extends from the brain to the abdomen, wandering through the body. The term "Ganglion" is derived from the Greek word "ganglion", meaning "knot", referring to the knot-like appearance of these nerve cell clusters.

Structure and Function

The vagus ganglion is a cluster of nerve cells (neurons) located in the neck, just below the skull. It is part of the peripheral nervous system and is involved in transmitting sensory information from the body to the brain. The vagus ganglion contains the cell bodies of sensory neurons that convey information about the body's internal environment to the brain.

Clinical Significance

Due to its role in transmitting sensory information, the vagus ganglion is involved in various physiological processes, including heart rate regulation, digestion, and immune response. Dysfunction of the vagus ganglion can lead to a variety of medical conditions, such as gastroparesis, arrhythmia, and inflammatory bowel disease.

Related Terms

• Vagus nerve
• Superior ganglion
• Peripheral nervous system
• Gastroparesis
• Arrhythmia
• Inflammatory bowel disease

Vagus ganglion Resources
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