How does diaphragmatic mobility relate to lymphatic drainage in OMM?

• A. Improved diaphragmatic mobility reduces lymphatic flow.
• B. Diaphragmatic movement has no impact on lymphatics.
• C. Improved diaphragmatic mobility enhances lymphatic flow.
• D. Diaphragm pressure blocks thoracic duct.

Answer: (C)

Diaphragmatic mobility acts as a pump that drives lymphatic drainage. When the diaphragm moves well, it expands the thoracic cavity and creates negative intrathoracic pressure, helping draw lymph into the lymphatics and push it toward the thoracic duct and into the venous system. So, greater diaphragmatic excursion enhances lymphatic flow and drainage. If diaphragmatic motion is limited, this pumping effect is reduced, leading to lymphatic stagnation. The other statements conflict with this mechanistic pump function, which is why improving diaphragmatic mobility supports better lymphatic drainage.