Subsartorial plexus

Subsartorial Plexus

The Subsartorial Plexus (also known as the Saphenous Plexus) is a network of nerves located in the subsartorial canal, also known as the adductor canal, in the thigh. It is formed by the branches of the femoral nerve and the obturator nerve. The subsartorial plexus gives rise to the saphenous nerve, the longest nerve in the human body.

Etymology

The term "subsartorial" is derived from the Latin words "sub" meaning "under" and "sartorius" referring to the sartorius muscle, under which the plexus is located. The term "saphenous" is derived from the Greek word "saphēnēs" meaning "clearly visible", referring to the saphenous vein which runs in close proximity to the saphenous nerve.

Anatomy

The subsartorial plexus is located in the subsartorial or adductor canal, a passageway in the middle third of the thigh. It is formed by the branches of the femoral nerve and the obturator nerve. The plexus gives rise to the saphenous nerve, which continues down the leg to supply sensation to the medial aspect of the lower leg and foot.

Clinical Significance

Damage to the subsartorial plexus can result in sensory loss or pain in the areas supplied by the saphenous nerve. This can occur due to trauma, surgery, or conditions such as diabetic neuropathy. In addition, the subsartorial plexus is often targeted in nerve blocks for procedures on the lower leg and foot.

Related Terms

• Femoral nerve: A nerve in the thigh that gives rise to the subsartorial plexus.
• Obturator nerve: A nerve in the thigh that contributes to the formation of the subsartorial plexus.
• Saphenous nerve: The nerve that arises from the subsartorial plexus.
• Sartorius muscle: The muscle under which the subsartorial plexus is located.
• Adductor canal: The canal in the thigh where the subsartorial plexus is located.

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