- Discussion:
- ilioinguinal nerve originates from first lumbar root (
L1 );
- emerges from lateral aspect of
Psoas muscle, and passes around
posterior abdominal wall over quadratus lumborum and
Iliacus;
- it then travels under external oblique, enters inguinal canal & descends to
supply sensory fibers to skin of superior part of scrotum and root of penis;
