Lumbrosacral plexus

Nerve: Lumbrosacral plexus
Plan of lumbar plexus.
Plan of sacral and pudendal plexuses.
Latin	plexus lumbosacralis
Gray's	subject #212 948
Innervates
From
To
MeSH	A08.800.800.720.450

Main article: Spinal nerves

The anterior divisions of the lumbar nerve, sacral nerve, and coccygeal nerves form the Lumbrosacral plexus or lumbosacral plexus, the first lumbar nerve being frequently joined by a branch from the twelfth thoracic. For descriptive purposes this plexus is usually divided into three parts:

• Lumbar plexus
• Sacral plexus
• Pudendal plexus

External links

• Atlas of anatomy at UMich abdo_wall72 - "Lumbosacral Plexus"

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

Nerves of lower limbs and lower torso: the lumbosacral plexus

lumbar plexus: iliohypogastric - ilioinguinal - genitofemoral (femoral branch/lumboinguinal, genital branch) - lateral cutaneous of thigh (patellar) - obturator (anterior, cutaneous, posterior, accessory) - femoral (anterior cutaneous branches, saphenous)

sacral/coccygeal plexus: to quadratus femoris - to obturator internus - to the piriformis - superior gluteal - inferior gluteal - posterior cutaneous of thigh (inferior cluneal, perineal branches)
sciatic: tibial (medial sural cutaneous, sural, medial calcaneal, medial plantar, lateral plantar) - common fibular (lateral sural cutaneous, deep fibular, superficial fibular, medial dorsal cutaneous, intermediate dorsal cutaneous)

pudendal plexus: perforating cutaneous - pudendal (dorsal of the penis/clitoris, inferior anal, perineal and posterior scrotal/labial) - anococcygeal

cutaneous innervation of the lower limbs