PHN stands for various terms. Discover the full forms, meanings, and possible interpretations of PHN across different fields and industries.
Motor nerve to the diaphragm, originating from the vertebral column in the neck and transversing the thoracic cavity. Important in diaphragmatic respiration. Can be irritated in the neck by a poorly designed seat harness. Repeated pressure surges in the abdominal cavity caused by movement of the back required by improper seat height are transmitted to the diaphragm and may cause pain to be projected to the shoulder.
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