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Lumbar Plexus 3D

  • Description                                                
    • * Is formed by the fusion of the ventral rami of the first four lumbar spinal nerves (L1-L4).
    • * Is situated within the psoas major muscle in the lower back.
    • * Gives rise to several significant nerves that innervate structures in the lower abdomen, pelvis, and lower limbs.

 

  • Iliohypogastric Nerve (T12, L1)
    • * Arises from the ventral rami of the twelfth thoracic and first lumbar spinal nerves.
    • * Descends inferolaterally over the psoas major muscle.
    • * Branches supply the transversus abdominis and internal oblique muscles.
    • * Provides cutaneous innervation to the skin above the pubic symphysis and the gluteal region.

 

  • Ilioinguinal Nerve (L1)​​​​​​​
    • * Emerges from the ventral ramus of the first lumbar spinal nerve.
    • * Runs alongside the iliohypogastric nerve.
    • * Supplies the skin of the mons pubis, labia majora (in females), and scrotum (in males).
    • * Also innervates the muscles of the anterior abdominal wall, including the transversus-abdominis and internal oblique.

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  • Description                                                
    • * Is formed by the fusion of the ventral rami of the first four lumbar spinal nerves (L1-L4).
    • * Is situated within the psoas major muscle in the lower back.
    • * Gives rise to several significant nerves that innervate structures in the lower abdomen, pelvis, and lower limbs.

 

  • Iliohypogastric Nerve (T12, L1)
    • * Arises from the ventral rami of the twelfth thoracic and first lumbar spinal nerves.
    • * Descends inferolaterally over the psoas major muscle.
    • * Branches supply the transversus abdominis and internal oblique muscles.
    • * Provides cutaneous innervation to the skin above the pubic symphysis and the gluteal region.

 

  • Ilioinguinal Nerve (L1)​​​​​​​
    • * Emerges from the ventral ramus of the first lumbar spinal nerve.
    • * Runs alongside the iliohypogastric nerve.
    • * Supplies the skin of the mons pubis, labia majora (in females), and scrotum (in males).
    • * Also innervates the muscles of the anterior abdominal wall, including the transversus-abdominis and internal oblique.

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