During cranial extension, what happens to the paired bones?

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Study for the OMM 6 – Cranial Evaluation and Treatment Test. Explore cranial anatomy and osteopathic principles with flashcards and multiple choice questions. Prepare comprehensively to excel in your exam!

Multiple Choice

During cranial extension, what happens to the paired bones?

Explanation:
In cranial extension, the paired bones rotate toward each other—that is, they undergo internal rotation. This inward twist is the opposite of what happens in flexion, where the bones externally rotate and the sutures diverge. The cranial mechanism involves subtle, rhythmic movements of the skull bones; extension is characterized by this inward rotation of the paired bones, rather than remaining stationary, translating laterally, or rotating outward.

In cranial extension, the paired bones rotate toward each other—that is, they undergo internal rotation. This inward twist is the opposite of what happens in flexion, where the bones externally rotate and the sutures diverge. The cranial mechanism involves subtle, rhythmic movements of the skull bones; extension is characterized by this inward rotation of the paired bones, rather than remaining stationary, translating laterally, or rotating outward.

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