Spinal Nerves

Spinal Nerves

1. 8 pairs cervical

2. 12 pairs thoracic

3. 5 pairs lumbar

4. 5 pairs saccral

5. 1 pair coccygeal

6. Plexus

   • Network of nerves
     • Cervical plexus
       • C1-C4
         • Supply muscles and skin of neck
           • Ex: phrenetic nerves in diaphragm
     • Brachila Plexus
       • T12-L4
         • Nerves supply the lead to the lower abdomen, external genetalia, and legs
           • Ex: femoral
     • Sacral plexus
       • L4-S4
         • Nerves from it service skin and muscles of buttocks and legs
           • Ex: sciatic nerve