Glottis

Last revised by Craig Hacking on 20 Feb 2024

The glottis is an anatomic subsite of the larynx, between the supraglottis and subglottis.

Terminology

The glottis should not be confused for the rima glottidis, which is the space in between the true vocal cords 3.

Gross anatomy

The glottic larynx includes the true vocal cords, where they come together at the anterior commissure, and where they meet the laryngeal cartilages at the interarytenoid region or posterior commissure. Some sources include the laryngeal ventricle as part of the glottis 3.

Boundaries and relations
  • superiorly: upper surface of true vocal cord, at its junction with the lateral margin of the ventricle

  • inferiorly: 1 cm below the upper surface of the vocal cord at its junction with the lateral margin of the ventricle

  • laterally: paraglottic space

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