American College of Osteopathic Family Physicians (ACOFP) Practice Test 2026 - Free Osteopathic Family Practice Questions and Study Guide

The cranial concept in osteopathy was developed by William Garner Sutherland, DO. He proposed that the skull, dura mater, and cerebrospinal fluid engage in a subtle, inherent rhythmic motion known as the primary respiratory mechanism, which can be felt as a cranial rhythmic impulse during gentle palpation. This idea formed the basis for diagnosing and treating somatic dysfunction through cranial manipulation. While A.T. Still founded osteopathy, the cranial concept itself is attributed to Sutherland. The other individuals are not associated with creating this concept.