Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Suctioning the Oropharyngeal Airway01:25

Suctioning the Oropharyngeal Airway

521
In preparing for oropharyngeal airway suctioning, a nurse must gather all necessary equipment, including a suction unit with tubing, a prepackaged suction kit, sterile gloves, water or saline for irrigation, a water-soluble lubricant, and additional personal protective equipment (such as a gown, mask, and goggles) to control infections.
After assembling the equipment, the nurse should practice hand hygiene and don appropriate PPE according to infection control guidelines to avoid the...
521
Larynx01:21

Larynx

2.9K
The human larynx, often referred to as the voice box, is an intricate organ located in the neck. It serves as a pathway for air to enter the lungs during respiration and is an essential component of voice production.
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,...
2.9K
Trachea01:22

Trachea

3.3K
The trachea, commonly known as the windpipe, is a vital part of the human respiratory system. It serves as a passageway for air to travel between the larynx and the bronchi, allowing oxygen to reach the lungs. Let's explore its anatomical features, dimensions, layers of the tracheal wall, associated muscles, and the functions of its parts.
Anatomical Features:
Location: About half of the trachea is situated in the neck, anterior to the esophagus, and extends from the larynx (at the level of...
3.3K
Pharynx01:20

Pharynx

4.0K
The pharynx, a tubular structure framed by skeletal muscle and lined with mucous membrane, extends continuously from the nasal cavities. It is segmented into three major areas: the nasopharynx, oropharynx, and laryngopharynx.
Nasopharynx
The nasopharynx, bordered by the conchae of the nasal cavity, serves exclusively as an air conduit. In its superior region, the pharyngeal tonsils or adenoids are located. These tonsils are clusters of lymphoid reticular tissue akin to a lymph node. The precise...
4.0K
Anatomy of Respiratory System I: Upper Respiratory Tract01:29

Anatomy of Respiratory System I: Upper Respiratory Tract

3.5K
The upper respiratory tract plays a vital role in the respiratory system, comprising several structures that facilitate air intake and prepare air for the lungs. It also serves as the first line of defense against pathogens and particles. This tract includes the nose and nasal cavity, the oral cavity, the paranasal sinuses, and the pharynx, each with specific functions and features.
Nose and nasal cavity
The nose and nasal cavity represent the main external openings of the respiratory tract....
3.5K
Suctioning the Nasopharyngeal Airway01:29

Suctioning the Nasopharyngeal Airway

1.7K
Nasopharyngeal suctioning is a procedure to remove secretions from the upper part of the respiratory tract that the patient cannot clear independently. It helps maintain airway patency and prevents complications such as aspiration pneumonia.
Equipment Required
1.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Overview of care for head and neck Cancer cases in Brazilian Cancer Centers during the COVID-19 pandemic.

Brazilian journal of otorhinolaryngology·2025
Same author

Towards an optimal design of acoustic Luneburg lenses.

The Journal of the Acoustical Society of America·2024
Same author

An experimental model of the pharyngoesophageal segment in tracheoesophageal phonation.

The Journal of the Acoustical Society of America·2023
Same author

Anatomical study of jugular foramen in the neck.

Brazilian journal of otorhinolaryngology·2018
Same author

Primary mediastinal liposarcoma - computed tomography and pathological findings: a case report.

Cases journal·2009
Same author

Numerical simulations of fluid-structure interactions in single-reed mouthpieces.

The Journal of the Acoustical Society of America·2007

Related Experiment Video

Updated: Nov 11, 2025

Synthetic, Multi-Layer, Self-Oscillating Vocal Fold Model Fabrication
10:16

Synthetic, Multi-Layer, Self-Oscillating Vocal Fold Model Fabrication

Published on: December 2, 2011

14.3K

A study on tracheoesophageal phonation based on a collapsible channel model.

André Miazaki da Costa Tourinho1, Andrey Ricardo da Silva1, Luiz Roberto Medina Dos Santos2

  • 1Departamento de Engenharia Mecânica, Campus Universitário Trindade, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil.

The Journal of the Acoustical Society of America
|March 26, 2021
PubMed
Summary

Tracheoesophageal (TE) speech rehabilitation after laryngectomy can be limited by pharyngoesophageal segment (PES) muscle tonicity. This study models PES hypotonicity, revealing a method to estimate the minimum muscle tone needed for successful TE voice production.

More Related Videos

Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp
09:58

Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp

Published on: February 3, 2014

8.7K
Hemi-laryngeal Setup for Studying Vocal Fold Vibration in Three Dimensions
10:13

Hemi-laryngeal Setup for Studying Vocal Fold Vibration in Three Dimensions

Published on: November 25, 2017

11.2K

Related Experiment Videos

Last Updated: Nov 11, 2025

Synthetic, Multi-Layer, Self-Oscillating Vocal Fold Model Fabrication
10:16

Synthetic, Multi-Layer, Self-Oscillating Vocal Fold Model Fabrication

Published on: December 2, 2011

14.3K
Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp
09:58

Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp

Published on: February 3, 2014

8.7K
Hemi-laryngeal Setup for Studying Vocal Fold Vibration in Three Dimensions
10:13

Hemi-laryngeal Setup for Studying Vocal Fold Vibration in Three Dimensions

Published on: November 25, 2017

11.2K

Area of Science:

  • Biomedical Engineering
  • Acoustic Science
  • Speech Pathology

Background:

  • Laryngeal cancer surgery often necessitates larynx removal.
  • Tracheoesophageal (TE) speech is a common voice rehabilitation technique post-laryngectomy.
  • Pharyngoesophageal segment (PES) muscle tonicity issues limit TE speech success for some patients.

Purpose of the Study:

  • To investigate the impact of PES muscle tonicity, particularly hypotonicity, on TE phonation.
  • To develop a model for analyzing the biomechanics of TE speech.
  • To identify factors influencing the capability for TE voice production.

Main Methods:

  • Utilized a simplified collapsible channel model of the PES.
  • Obtained steady-state solutions for the model.
  • Performed linear stability analysis to assess phonation dynamics.

Main Results:

  • Model's steady-state solutions align with diverse reported PES configurations.
  • Linear stability analysis yielded an expression for minimum required PES tonicity.
  • Identified a quantifiable relationship between PES muscle tone and TE voice capability.

Conclusions:

  • PES muscle tonicity is a critical factor in successful TE speech.
  • The developed model provides insights into PES biomechanics for phonation.
  • The derived expression aids in predicting the likelihood of achieving self-sustained TE voice oscillations.