What trauma would be induced from #4?

What trauma would be induced from #4?

• A. Left torsion
• B. Right torsion
• C. Inferior vertical strain
• D. Right lateral strain

Answer: (B)

In cranial practice, a torsional pattern arises when the sphenoid and occiput rotate in opposite directions about an anterior-posterior axis through the skull base. The direction of torsion is named for the direction the sphenoid rotates relative to the occiput. If the trauma described as #4 would cause the skull to twist so the sphenoid rotates to the right while the occiput rotates to the left, you have a right torsion. That is why the right torsion answer fits the mechanism of #4. The other patterns involve different axes or motions: a left torsion would be the opposite rotation; an inferior vertical strain describes a vertical displacement of the SBS rather than a rotational pattern; a right lateral strain involves a diagonal, side-to-side distortion rather than a pure torsional rotation about the AP axis.

In cranial practice, a torsional pattern arises when the sphenoid and occiput rotate in opposite directions about an anterior-posterior axis through the skull base. The direction of torsion is named for the direction the sphenoid rotates relative to the occiput. If the trauma described as #4 would cause the skull to twist so the sphenoid rotates to the right while the occiput rotates to the left, you have a right torsion.

That is why the right torsion answer fits the mechanism of #4. The other patterns involve different axes or motions: a left torsion would be the opposite rotation; an inferior vertical strain describes a vertical displacement of the SBS rather than a rotational pattern; a right lateral strain involves a diagonal, side-to-side distortion rather than a pure torsional rotation about the AP axis.