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Main nerves of the lower limb: want to learn more about it?

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Main nerves of the lower limb

Learning objectives

In this study unit you will learn how to:

  1. Name the major nerves of the lower limb.
  2. Discover the region supplied by each nerve.

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The lower limb is supplied by the lumbosacral plexus and its two major nerve branches, the femoral nerve and sciatic nerve. In the anterior thigh you will find the femoral nerve, the largest branch of the lumbar plexus. The sciatic nerve travels down the posterior aspect of the lower limb. It branches from the sacral plexus and is the longest nerve in the body, spanning from the hip to the foot and measuring a whopping 2 cm in diameter! To get a good visual of the course of these nerves though the lower limb, their branches and the regions they supply, watch the video below.

If you want to learn more about the nerves themselves and how they form nerve plexuses such as the sacral and lumbar plexus, watch the two videos below.

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Summary

Key points
Main nerves of the lower limb Obturator nerve, sciatic nerve, femoral nerve, saphenous nerve, tibial nerve, sural nerve, common fibular nerve, medial plantar nerve, lateral plantar nerve
Lower limb region supplied by each nerve Hip: gluteal nerves, pudendal nerve and sciatic nerve
Thigh
: femoral nerve, saphenous nerve
Leg
: tibial nerve, common fibular nerve, superficial fibular nerve, deep fibular nerve
Foot
: lateral plantar nerve, medial plantar nerve, common plantar digital nerves, dorsal digital nerves

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