• C1 – Back of head
  
• C2 – Various areas of the head
  
• C3 – Side and front of neck
  
• C4 – Upper back of neck
  
• C5 – Middle of neck and upper part of arms
  
• C6 – Lower part of neck, arms, and elbow
  
• C7 – Lower part of arm and shoulder
  

• T1 – Hand, wrist, Fingers, and thyroid
  
• T2 – Heart, heart valves and coronary arteries
  
• T3 – Lungs, bronchial tubes, pleura, and chest
  
• T4 – Gall bladder and common duct
  
• T5 – Liver and solar plexus
  
• T6 – Stomach and mid-back area
  
• T7 – Pancreas and duodenum
  
• T8 – Spleen and lower mid-back
  
• T9 – Adrenal glands
  
• T10 – Kidneys
  
• T11 – Ureters
  
• T12 – Small intestine and upper/lower back
  

• L1 – Iliocecal valve and large intestine
  
• L2 – Appendix, abdomen and upper leg
  
• L3 – Sex organs, uterus, bladder, and knees
  
• L4 – Prostate gland and lower back        
  
• L5 – Sciatic nerve, lower legs, ankles, and feet
  

• Sacrum – Hipbones and buttocks
  

• Coccoyx – Rectum and anus