Related Experiment Video
Updated: Jun 27, 2026

Synthetic, Multi-Layer, Self-Oscillating Vocal Fold Model Fabrication
Published on: December 2, 2011
Validation of the newborn larynx modeling with aerodynamical experimental data
R Nicollas1, J Giordano, R Garrel
1Laboratoire de l'I.U.S.T.I., U.M.R. 6595 C.N.R.S.-Université de Provence, Technopôle de Château-Gombert, 5 Rue Enrico Fermi 13453 Marseille cedex 13, France. richard.nicollas@ap-hm.fr
Background:
Many authors have studied adult's larynx modelization, but the mechanisms of newborn's voice production have very rarely been investigated. After validating a numerical model with acoustic data, studies were performed on larynges of human fetuses in order to validate this model with aerodynamical experiments.
Material And Methods:
Anatomical measurements were performed and a simplified numerical model was built using Fluent((R)) with the vocal folds in phonatory position. The results obtained are in good agreement with those obtained by laser Doppler velocimetry (LDV) and high-frame rate particle image velocimetry (HFR-PIV), on an experimental bench with excised human fetus larynges.
Results:
It appears that computing with first cry physiological parameters leads to a model which is close to those obtained in experiments with real organs.
Related Concept Videos
Larynx
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids, corniculates, and...
Suctioning the Nasopharyngeal Airway
Equipment Required
Suctioning the Oropharyngeal Airway
After assembling the equipment, the nurse should practice hand hygiene and don appropriate PPE according to infection control guidelines to avoid the...

