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Related Concept Videos

Larynx01:21

Larynx

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, corniculates, and...
Physical Assessment of the Respiratory Tract IV: Auscultation01:28

Physical Assessment of the Respiratory Tract IV: Auscultation

Auscultation is a crucial component of the physical assessment of the respiratory tract. It offers valuable insights into airflow through the bronchial tree and potential lung obstructions. This process involves careful listening to breath, voice, and adventitious sounds, which can reveal a wealth of information about a patient's respiratory health.
Breath Sounds
Breath sounds are categorized into vesicular, bronchovesicular, and bronchial.
Respiratory System Abnormal Finding II: Palpation and Auscultation01:31

Respiratory System Abnormal Finding II: Palpation and Auscultation

In assessing respiratory abnormalities, palpation and auscultation are critical tools for detecting and interpreting various pathophysiological changes. These techniques provide insight into underlying disorders by evaluating tactile sensations and sounds produced by the respiratory system.
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
Assessment of Airway, Skin Color, and Use of Accessory Muscles01:30

Assessment of Airway, Skin Color, and Use of Accessory Muscles

A thorough assessment of respiratory health is paramount in clinical settings to identify and manage respiratory distress and ensure adequate oxygenation. This article elaborates on the critical aspects of respiratory evaluation, including airway assessment, skin color examination, and the observation of accessory muscle use, which are integral to effectively diagnosing and managing patients with respiratory conditions.
Introduction
The initial evaluation of a patient's respiratory system...
Assessment of Ventilation II: Respiratory Depth and Rhythm01:29

Assessment of Ventilation II: Respiratory Depth and Rhythm

Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Physical Assessment of the Respiratory Tract II: Palpation01:24

Physical Assessment of the Respiratory Tract II: Palpation

Physical assessment of the respiratory tract is critical in identifying potential health issues. One key component of this assessment is palpation, a technique healthcare providers use to assess the body for abnormalities. This content explores the method of palpation in evaluating the respiratory tract, focusing on thoracic palpation and tactile fremitus.
Thoracic Palpation
Thoracic palpation detects tenderness, masses, lesions, respiratory excursions, and vocal fremitus. The nurse assesses...

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Related Experiment Video

Updated: Jun 4, 2026

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
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Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing

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Optimal arytenoid adduction based on quantitative real-time voice analysis.

Matthew R Hoffman1, Ketan Surender, William J Chapin

  • 1University of Wisconsin-Madison School of Medicine and Public Health, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, Madison, Wisconsin 53706, USA.

The Laryngoscope
|January 29, 2011
PubMed
Summary

Quantitative voice analysis can guide surgeons in optimizing arytenoid rotation during arytenoid adduction surgery for vocal fold paralysis. This method refines surgical precision for better voice outcomes.

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Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
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Point-of-Care Ultrasound: A Review of Ultrasound Parameters for Predicting Difficult Airways

Published on: April 7, 2023

Area of Science:

  • Laryngology
  • Voice Science
  • Surgical Innovation

Background:

  • Unilateral vocal fold paralysis (VFP) presents significant voice impairment.
  • Arytenoid adduction (AA) is a surgical technique to improve vocal fold closure.
  • Determining the optimal degree of arytenoid rotation is crucial for surgical success.

Purpose of the Study:

  • To investigate the utility of quantitative real-time voice analysis in determining the optimal degree of arytenoid rotation for AA.
  • To assess the impact of varying arytenoid rotation angles on voice parameters.

Main Methods:

  • Modeled unilateral VFP in five excised canine larynges.
  • Performed medialization laryngoplasty (ML) followed by AA.
  • Utilized real-time measurements of vocal efficiency (VE), jitter, and shimmer to identify optimal arytenoid rotation.
  • Recorded aerodynamic, acoustic, and mucosal wave data under varying rotation conditions.

Main Results:

  • The mean optimal angle for AA was 151.4 ± 2.5°.
  • Optimal AA significantly improved vocal efficiency (VE) and reduced vocal perturbations (jitter and shimmer) compared to other conditions.
  • Mucosal wave amplitude was highest with optimal AA, approaching normal fold function.

Conclusions:

  • Quantitative real-time voice analysis effectively identifies optimal arytenoid rotation for AA.
  • This technique shows promise in enhancing surgical precision and improving voice quality in VFP patients.
  • Further clinical studies are needed to validate these findings and assess associated respiratory and swallowing outcomes.