Genitofemoral Nerve

Authors
Affiliations

Nathaniel Yomogida, B.S., SPT

Doctor of Physical Therapy

B.S. in Kinesiology

Chloë Kerstein, B.S., SPT

Doctor of Physical Therapy

B.A. in Neuroscience

Genitofemoral Nerve1

Genitofemoral Nerve1

Roots

L1, L21

Pathway

  • Pierces psoas major anteriorly below the former 2 nerves to immediately split into 2 branches that run down on ant side of the muscle
  • Genital branch differs in Males vs Females
    • Males: runs in spermatic cord and then sends sensory branches to scrotal skin. In males in supplies motor innervation to cremaster
    • Females: runs w teres uteri ligament and sends sensory branches to labia majora
  • Passes through inguinal canal

Motor innervation

Genitofemoral Nerve Muscle Innervations
Muscle Origin Insertion Innervation Action

Cutaneous Innervation

  • Lateral, femoral branch = sensory
  • Supplies skin below inguinal, prox lat aspect of femoral triangle

Dysfunction

Entrapment; rare

References

1.
Gilroy AM, MacPherson BR, Wikenheiser JC, Voll MM, Wesker K, Schünke M, eds. Atlas of Anatomy. 4th ed. Thieme; 2020.

Citation

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