The inferior portion of the hyoid bone is formed by which arch?

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Study for the Pharyngeal Apparatus Test. Dive into multiple choice questions with detailed explanations and hints. Prepare effectively for your exam!

Multiple Choice

The inferior portion of the hyoid bone is formed by which arch?

Explanation:
Parts of the hyoid bone come from different pharyngeal arches, with the lower portion specifically formed by the third arch. During development, Reichert’s cartilage from the second arch gives rise to the lesser horn and the upper part of the hyoid body, while the third arch contributes to the greater horn and the lower portion of the body. The first arch doesn’t contribute to the hyoid, and the fourth arch is involved with laryngeal cartilages rather than the hyoid. So, the inferior portion of the hyoid bone is derived from the third pharyngeal arch.

Parts of the hyoid bone come from different pharyngeal arches, with the lower portion specifically formed by the third arch. During development, Reichert’s cartilage from the second arch gives rise to the lesser horn and the upper part of the hyoid body, while the third arch contributes to the greater horn and the lower portion of the body. The first arch doesn’t contribute to the hyoid, and the fourth arch is involved with laryngeal cartilages rather than the hyoid. So, the inferior portion of the hyoid bone is derived from the third pharyngeal arch.

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