Which autonomic nervous system components are most commonly considered in OMM?

• A. Sympathetic (T1-L2) only
• B. Sympathetic (T1-L2) and Parasympathetic (CN III, VII, IX, X, S2-S4) pathways
• C. Parasympathetic only
• D. Enteric nervous system and central nervous system

Answer: (B)

In OMM, understanding how autonomic tone affects tissue texture and somatic dysfunction is central. The most useful approach is to consider both major autonomic branches: sympathetic outflow from T1–L2 and parasympathetic outflow via cranial nerves III, VII, IX, X and sacral nerves S2–S4. The sympathetic pathways influence many thoracic and upper abdominal structures, while the parasympathetic pathways provide rest-and-digest regulation of the same regions and of pelvic organs. This dual consideration explains patterns of somatic findings and viscerosomatic reflexes that osteopathic techniques aim to normalize.

Options that focus on only one branch omit important balancing influences, and treating the enteric system or the CNS as the primary autonomic targets isn’t how OMM typically frames autonomic modulation. That’s why the combined sympathetic and parasympathetic pathways represent the standard focus.