Subcostal nerve

Dr Craig Hacking and Dr Henry Knipe et al.

The subcostal nerve can also be considered as the twelfth intercostal nerve. Some authors describe it as the first branch of the lumbar plexus.

Gross anatomy

The anterior division of the twelfth thoracic nerve, called the subcostal nerve, is larger than the other intercostal nerves. It runs along the lower border of the twelfth rib.

It may give off a communicating branch to the first lumbar nerve and the iliohypogastric nerve.


Thoracic anatomy
Share article

Article Information

rID: 26648
System: Chest
Section: Anatomy
Synonyms or Alternate Spellings:
  • Twelfth intercostal nerve
  • Subcostal nerves

Support Radiopaedia and see fewer ads

Cases and Figures

  • Drag
    Figure 1: subcostal nerve
    Drag here to reorder.
  • Drag
    Figure 2: lumbar plexus labelled
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.