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Nightingale Anatomy Practice Exam

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Which bone is the only one in the body that articulates with no other bones?
Correct Answer:
Hyoid
Explanation:
Some bones in the body don’t form joints with other bones. The hyoid bone is the one that doesn’t participate in any bone-to-bone articulation. It sits in the anterior neck as a small U-shaped structure and is suspended by ligaments and muscles from the skull and mandible, not connected to another bone by a joint. This unique setup lets it serve as an anchor for tongue and throat muscles and move with swallowing and speech without constraining adjacent bones. By comparison, the other bones shown form joints with other bones: the jawbone articulates with the temporal bone at a joint, the clavicle connects to the sternum and to the scapula, and the scapula forms joints with the clavicle and the humerus.

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