Vertebrae Nerve Map __link__ Site

Spinal cord: Anatomy, structure, tracts and function | Kenhub Spinal Nerve Chart Miller Chiropractic Clinic

8 pairs in the neck area that typically run to the face, head, neck, and arms. vertebrae nerve map

| Vertebral Level | Nerve Roots | Key Innervation (Sensory/Motor) | |----------------|-------------|--------------------------------| | | Cervical | Back of head, neck, diaphragm (C3–C5 via phrenic nerve) | | C5–C8 | Cervical | Shoulders, lateral arms, thumb (C6), middle finger (C7), little finger (C8) | | T1–T2 | Thoracic | Medial arm, hand muscles | | T4–T5 | Thoracic | Nipple line (T4) | | T10 | Thoracic | Umbilicus (T10) | | T12–L1 | Thoracolumbar | Groin, upper thigh | | L2–L4 | Lumbar | Anterior thigh (L2–L3), knee extension (L3–L4), patellar reflex (L4) | | L5 | Lumbar | Lateral leg, big toe extension | | S1 | Sacral | Posterior leg, little toe, ankle reflex (S1) | | S2–S4 | Sacral | Perineum, bladder/bowel control, erectile function | Spinal cord: Anatomy, structure, tracts and function |