How would a torsion of the SBS feel?

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Prepare for the OMM 6 Cranial Evaluation and Treatment Test. Use flashcards and multiple-choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

How would a torsion of the SBS feel?

Explanation:
In a SBS torsion, the sphenoid and occiput rotate in opposite directions around an axis through the sphenobasilar synchondrosis. This creates a palpable pattern where the greater wing of the sphenoid moves upward (superior) while the occiput moves downward (inferior). That opposite rotation is the hallmark of torsion, so feeling the sphenoid’s greater wing rise while the occiput sinks aligns with the expected motion. The other patterns would reflect different cranial motion abnormalities, such as simultaneous movement in the same direction seen with other strains, not a torsion.

In a SBS torsion, the sphenoid and occiput rotate in opposite directions around an axis through the sphenobasilar synchondrosis. This creates a palpable pattern where the greater wing of the sphenoid moves upward (superior) while the occiput moves downward (inferior). That opposite rotation is the hallmark of torsion, so feeling the sphenoid’s greater wing rise while the occiput sinks aligns with the expected motion. The other patterns would reflect different cranial motion abnormalities, such as simultaneous movement in the same direction seen with other strains, not a torsion.

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