Sectional and skin innervation (front view):

1. Ophthalmic nerve
2. Maxillary nerve
3. Mandibular nerve
4. Greater occipital nerve
5. Transverse nerve of the neck
6. Supraclavicular nerves
7. Anterior cutaneous branches of the thoracic nerves
8. Superior lateral cutaneous nerve of the shoulder
9. Lateral cutaneous branches of the thoracic nerves
10. Anterior cutaneous branches of the thoracic
11. Medial cutaneous nerve of the shoulder
12. Posterior cutaneous nerve of the shoulder
13. Lateral cutaneous nerve of the forearm
14. Medial cutaneous nerve of the forearm
15. Radial nerve
16. Median nerve
17. Ulnar nerve
18. Lateral cutaneous branch of the iliohypogastric nerve
19. Iliohypogastric nerve
20. Femoral branch of the genitofernoral nerve
21. Ilioinguinal nerve
22. Lateral cutaneous nerve of femur
23. Cutaneous branch of the obturator nerve
24. Anterior cutaneous branches of the femoral nerve
25. Lateral sural cutaneous nerve
26. Saphenous nerve
27. Intermediate dorsal cutaneous nerve
28. Sural nerve
29. Deep peroneal nerve

1. Greater occipital nerve
2. Lesser occipital nerve
3. Great auricular nerve
4. Supraclavicular nerves
5. Medial cutaneous branches of dorsal nerves
6. Lateral cutaneous branches of dorsal nerves
7. Upper side skin nerve of a shoulder(arm)
8. Medial cutaneous nerve of a shoulder(arm)
9. Back skin nerve of a shoulder(arm)
10. Superior lateral cutaneous nerve of the shoulder
11. Posterior cutaneous nerve of the forearm
12. Medial cutaneous nerve of the forearm
13. Radial nerve
14. Ulnar nerve
15. Median nerve
16. Lateral cutaneous nerve of femur
17. Superior gluteal nerves
18. Lateral cutaneous branch of the Iliohypogastric nerve
19. Middle gluteal nerves
20. Inferior gluteal nerves
21. Lateral cutaneous nerve of femur
22. Cutaneous branch of the obturator nerve
23. Medial sural cutaneous nerve
24. Saphenous nerve
25. Lateral cutaneous sural nerve
26. Sural nerve
27. Lateral plantar nerve

Segments of the spinal cord