Surgical and Radiologic Anatomy

, Volume 39, Issue 3, pp 257–262 | Cite as

Control of the glottal configuration in ex vivo human models: quantitative anatomy for clinical and experimental practices

  • Aude Lagier
  • Daphné Guenoun
  • Thierry Legou
  • Robert Espesser
  • Antoine Giovanni
  • Pierre Champsaur
Original Article



The objective of this paper was to identify the determining factors of the glottal prephonatory configuration from the point of view of the resulting muscular actions (i.e., arytenoids adduction, membranous vocal fold adduction, and tension).

Materials and methods

21 human non-embalmed excised larynges (12 females and 9 males) were studied. Experiment A (11 larynges) studied four conditions of adduction of the vocal folds and arytenoids. Experiment B (10 larynges) studied the effect of cricothyroid approximation on the vocal fold length and the cricothyroid angle.


Experiment A: The mean glottal area significantly decreased from 41.2 mm2 mean with no adduction, to 10.2 mm2 mean with arytenoid adduction, to 9.2 mm2 with membranous vocal fold adduction, and down to 1.1 mm2 with the combination of arytenoid and membranous adduction. The effect of the task was statistically significant. Experiment B: The length of vocal folds increased from 13.61 mm median to 14.48 mm median, and the cricothyroid angle decreased of 10.05 median along with cricothyroid approximation.


The results of experiment A emphasize the sub-division of adductor intrinsic muscles in arytenoids adductors (i.e., LCA and IA), and membranous vocal fold adductor (i.e., TA). The results of experiment B quantify the effect of cricothyroid approximation on the vocal folds length. The implications of these results can be useful in both clinical practice and experimental studies.


Larynx Glottis Vocal folds adduction Phonation control Voice 


Compliance with ethical standards

Conflict of interest

The authors declare that there is no conflict of interest of any kind.


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Copyright information

© Springer-Verlag France 2016

Authors and Affiliations

  • Aude Lagier
    • 1
    • 2
    • 3
  • Daphné Guenoun
    • 1
  • Thierry Legou
    • 2
  • Robert Espesser
    • 2
  • Antoine Giovanni
    • 2
    • 3
  • Pierre Champsaur
    • 1
  1. 1.Laboratoire d’Anatomie, Faculté de médecine de MarseilleAix-Marseille UniversitéMarseille Cedex 05France
  2. 2.Laboratoire Parole et LangageUMR CNRS-Aix-Marseille UniversitéAix-en-ProvenceFrance
  3. 3.Service d’ORL et Chirurgie Cervico-FacialeCHU La Conception, AP-HMMarseilleFrance

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