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Pronunciation Guide
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Listen to native speakers pronounce “tail bone” in real conversational contexts with synchronized timestamps and subtitles.
Cervical, thoracic, lumbar, sacral, about all of the 33 of the spinal vertebrae are filled with nourishing cerebral spinal fluid thattravels from the cranium to the tail bone and back to the cranium.The cranial sutures, joints, tendons, ligaments, muscles, and blood vessels expand and contract with the rhythm