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Lumbar PlexusDaniel Vela-Duarte, MDDepartment of NeurologyLoyola University Medical CenterJuly 2012
Lumbar Plexus   The lumbar plexus    originates from ventral    rami of L1–L4.   It provides motor and    sensory contri...
     Iliohypogastric nerve (L1).                             Provides a portion of the motor                             ...
Lumbar plexus
Lumbar plexus
Lumbar plexus
Lumbar plexus
Lumbar plexus
Lumbar plexus
Lumbar plexus
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Lumbar plexus

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Lumbar plexus

  1. 1. Lumbar PlexusDaniel Vela-Duarte, MDDepartment of NeurologyLoyola University Medical CenterJuly 2012
  2. 2. Lumbar Plexus The lumbar plexus originates from ventral rami of L1–L4. It provides motor and sensory contributions to the anterior and medial compartment of the leg as well as to the abdominal wall and pelvic areas.
  3. 3.  Iliohypogastric nerve (L1). Provides a portion of the motor innervation to the abdominal wall muscles and sensory innervation to the pubic region.  Ilioinguinal nerve (L1). Provides a portion of the motor innervation to the abdominal wall muscles and sensory innervation to the superior medial thigh and pubic area.The lumbar plexus and sacral plexus are united via the lumbosacral trunk, which iscomprised of a portion of L4 nerve root anterior rami, and all L5 anterior rami. 

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