Aortic plexus

Aortic plexus

The aortic plexus is a network of nerves located around the abdominal aorta. It is part of the autonomic nervous system and plays a crucial role in the innervation of the abdominal organs.

Anatomy

The aortic plexus is situated around the abdominal aorta, extending from the level of the diaphragm down to the bifurcation of the aorta into the common iliac arteries. It is composed of both sympathetic and parasympathetic fibers.

Sympathetic Fibers

The sympathetic fibers of the aortic plexus originate from the thoracic splanchnic nerves, which include the greater splanchnic nerve, lesser splanchnic nerve, and least splanchnic nerve. These fibers contribute to the regulation of blood flow and the function of various abdominal organs.

Parasympathetic Fibers

The parasympathetic fibers are primarily derived from the vagus nerve (cranial nerve X). These fibers are responsible for stimulating digestive activities and modulating the function of the abdominal organs.

Function

The aortic plexus plays a vital role in the autonomic regulation of the abdominal organs. It helps control the gastrointestinal tract, kidneys, adrenal glands, and other structures within the abdomen. The plexus ensures proper coordination between the sympathetic and parasympathetic systems to maintain homeostasis.

Clinical Significance

Disorders of the aortic plexus can lead to various medical conditions, including abdominal pain, dyspepsia, and autonomic dysfunction. Understanding the anatomy and function of the aortic plexus is essential for diagnosing and treating these conditions.

Related Pages

• Autonomic nervous system
• Abdominal aorta
• Thoracic splanchnic nerves
• Vagus nerve
• Sympathetic nervous system
• Parasympathetic nervous system