Which statement about diaphragms in OMM is NOT accurate?

• A. They improve diaphragmatic motion
• B. They enhance venous and lymphatic return
• C. They modulate autonomic tone affecting organ systems
• D. They directly lengthen long bones

Answer: (D)

In OMM, diaphragms are functional fascial units that coordinate motion across body compartments and act as pumps for circulation and drainage. Working with these diaphragms helps improve the overall movement of the musculoskeletal and visceral systems.

Improving diaphragmatic motion is a central effect. When diaphragms move more freely, rib cage expansion and diaphragmatic excursion increase, which enhances breathing mechanics and reduces focal restrictions.

Enhancing venous and lymphatic return follows from that diaphragmatic motion. The respiratory pump created by a well-functioning diaphragm facilitates venous return to the heart and promotes lymphatic drainage from the trunk and extremities, helping to clear edema and improve tissue perfusion.

Modulating autonomic tone is another key outcome. By relieving fascial restrictions around autonomic pathways and improving organ connectivity through the diaphragms, there can be a balanced influence on sympathetic and parasympathetic input to various organ systems, supporting better autonomic regulation.

Directly lengthening long bones, however, is not a mechanism of diaphragms in OMM. Diaphragms influence motion, flow, and autonomic balance through fascia and fluid dynamics, not by physically elongating bones.