Iliac (nerve) plexus

Iliac Plexus

The Iliac Plexus is a complex network of nerves located in the pelvic region of the human body. It is primarily composed of the lumbar and sacral plexuses, which are responsible for innervating the lower limbs and pelvic organs. The Iliac Plexus plays a crucial role in the functioning of the lower body, including movement, sensation, and autonomic functions.

File:Iliac Plexus.png

Illustration of the Iliac Plexus

Anatomy

The Iliac Plexus is formed by the union of the fourth lumbar to the fourth sacral nerves. It is located in the pelvic cavity, anterior to the sacroiliac joint and posterior to the internal iliac artery and vein. The plexus is divided into two main branches: the anterior and posterior divisions. The anterior division gives rise to the obturator nerve, while the posterior division forms the sciatic nerve.

Function

The Iliac Plexus innervates the muscles and skin of the lower limbs, as well as the pelvic organs. It is responsible for the sensory and motor functions of the lower body, including movement, sensation, and autonomic functions such as bladder control and sexual function.

Clinical Significance

Damage to the Iliac Plexus can result in a variety of conditions, including neuropathy, sciatica, and pelvic pain. Diagnosis of these conditions often involves a thorough neurological examination, imaging studies, and nerve conduction studies. Treatment options may include physical therapy, medication, nerve blocks, and in severe cases, surgery.

See Also

• Lumbar Plexus
• Sacral Plexus
• Nervous System
• Pelvic Pain

References

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