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[The hyoid bone and vertical dimension].

A Doual1, J L Léger, J M Doual

  • 1Faculté d'Odontologie, Lille. adoual@univ-lille2.fr

L' Orthodontie Francaise
|August 11, 2004
PubMed
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The hyoid bone, crucial for oro-facial functions and respiration, plays a vital role in maintaining pharyngeal airway patency. Its unique structure and position are key to sound modulation and breathing, despite its small size.

Area of Science:

  • Anatomy and Physiology
  • Evolutionary Biology
  • Developmental Biology

Context:

  • The hyoid bone's central location in the neck connects the skull, mandible, tongue, larynx, and scapular belt.
  • It is integral to the oro-facial complex's functional and nutritional activities, particularly within the pharyngeal column.
  • Its evolutionary significance is linked to the development of human vertebrae and brachial arches.

Purpose:

  • To explore the hyoid bone's complex anatomy and its extensive tendino-muscular connections.
  • To elucidate the hyoid bone's role in vital functions, including respiration, phonation, and swallowing.
  • To analyze its phylogenetic evolution and ontogenetic development, particularly the shift from sagittal to vertical equilibrium.

Summary:

  • The hyoid bone, despite its seemingly simple form, is a complex structure vital for oro-facial functions and respiration.

Related Experiment Videos

  • Its strategic position and unique anatomical features allow it to maintain pharyngeal airway patency and contribute to sound modulation.
  • Research highlights its increasing importance in respiratory equilibrium and its adaptability to physiological demands like mouth breathing.

    • Impact:

    • Understanding the hyoid bone's function is critical for comprehending oro-facial development and respiratory mechanics.
    • Its role in phonation and swallowing has implications for speech therapy and swallowing disorder treatments.
    • The study underscores the hyoid bone's significance beyond its perceived vestigial status, highlighting its evolutionary and functional importance.