Rima vestibuli

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Rima Vestibuli

Rima vestibuli (/ˈriːmə vɛstɪˈbjuːliː/; from Latin rima, "crack, fissure" and vestibulum, "entrance hall") is a term used in anatomy to refer to the space between the vocal folds and the vestibular folds in the larynx.

Etymology

The term rima vestibuli is derived from Latin. Rima translates to "crack" or "fissure", and vestibulum translates to "entrance hall". This is a fitting description as the rima vestibuli is a space or opening located at the entrance of the larynx.

Anatomy

The rima vestibuli is part of the laryngeal inlet, the opening that leads into the larynx from the pharynx. It is bounded by the vestibular folds, also known as the false vocal cords, and the vocal folds, also known as the true vocal cords. The rima vestibuli is wider than the rima glottidis, the space between the vocal folds themselves.

Function

The rima vestibuli plays a crucial role in respiration and phonation. During normal breathing, the rima vestibuli remains open to allow air to pass into the lungs. During phonation, the vocal folds come together to close the rima vestibuli, causing the air pressure to build up beneath them. When the pressure becomes too great, the vocal folds are pushed apart, allowing the air to escape and create sound.

Related Terms

  • Larynx: The organ in the throat involved in breathing, producing sound, and protecting the trachea against food aspiration.
  • Vocal folds: Also known as vocal cords, they are involved in creating sound.
  • Vestibular folds: Also known as false vocal cords, they play a role in closing the larynx when swallowing.
  • Rima glottidis: The space between the true vocal cords and the arytenoid cartilages.

External links

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