ILIOHYPOGASTRIC & ILIOINGUINAL NERVES
From NeuroRehab.wiki
SUMMARY
1. Origin - L1.2. Sensory supply - skin over inguinal region & anterior scrotum/labia.
3. Motor supply - internal oblique & transversus abdominis of the roof of the inguinal canal (tightens the conjoint tendon and lowers the roof of the canal, like a shutter. Damage to the nerve can lead to direct inguinal hernia).
Reference(s)
R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone.
Gray, H., Carter, H.V. and Davidson, G. (2017). Gray’s anatomy. London: Arcturus.