Superior cluneal nerves

Superior cluneal nerves are a group of nerves in the human body that originate from the dorsal rami of the lower three lumbar spinal nerves (L1-L3). These nerves provide sensory innervation to the skin of the upper part of the buttock.

Etymology

The term "cluneal" comes from the Latin word "clunis" which means buttock. The term "superior" is used to differentiate these nerves from the inferior cluneal nerves, which are a separate group of nerves that innervate a different part of the buttock.

Anatomy

The superior cluneal nerves emerge from the lumbar plexus, a network of nerve fibers that originates in the lumbar region of the spine. They pass through the psoas major muscle and then cross over the iliac crest, the curved ridge at the top of the pelvic bone. From there, they branch out to innervate the skin of the upper buttock.

Clinical significance

The superior cluneal nerves can sometimes become entrapped, leading to a condition known as cluneal nerve entrapment. This can cause pain in the lower back and buttock, which can be severe. Treatment options for cluneal nerve entrapment include physical therapy, medication, and in some cases, surgery.

Related terms

• Lumbar plexus
• Dorsal rami
• Psoas major muscle
• Iliac crest
• Inferior cluneal nerves
• Cluneal nerve entrapment

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