Listed below are the organs and systems within the body that are affected by various vertebrae within the spine.

Upper Neck, Upper Cervical Spine (C1 - C2)

• C1 - Brain, Nasal and Palette Glands, Lungs, Heart, Spleen, Kidney, Stomach, Liver, Large Intestines
• C2 - Eye, Sinuses, Brain, Nasal and Palette Glands

Mid/Lower Neck, Cervical Spine (C3 – C7)

• C3 - Eye, Sinuses, Nasal and Palette Glands,
• C4 - Eye, Sinuses, Nasal and Palette Glands, Sublingual Glands, Submaxilary Glands
• C5 - Parotid Gland, Sublingual Glands, Submaxilary Glands
• C6 - Parotid Gland, Thyroid
• C7 - Thyroid, Lungs

Mid Back, Thoracic Spine (T1 - T12)

• T1 - Lungs, Heart, Parotid Gland, Carotid Artery, Pulmonary Artery
• T2 - Lungs, Heart, Parotid Gland, Carotid Artery
• T3 - Lungs, Heart, Stomach, Pulmonary Artery, Carotid Artery
• T4 - Liver
• T5 - Stomach
• T6 - Pancreas
• T7 - Spleen
• T8 - Liver
• T9 - Adrenal
• T10 - Small Intestines
• T11 - Kidney
• T12 - Kidney

Lower Back, Lumbar Spine (L1 - L5)

• L1 - Large Intestines
• L2 - Large Intestines
• L3 - Large Intestines, Spleen, Bladder
• L4 - Large Intestines, Bladder
• L5 - Large Intestines, Spleen, Bladder

Basebone or Tailbone, Sacrum and Coccyx

• SACR - Large Intestines, Spleen, Bladder