Intercostal nerves
Introduction The intercostal nerves originate in segments from the anterior/ventral rami of thoracic spinal nerves T1 to T11. The term ’intercostal’ mention to their course in the intercostal space, in which they run alongside intercostal vessels. The anterior rami of the most inferior thoracic spinal nerve (T12) give rise to the subcostal nerve which runs…