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Related Concept Videos

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:
Asthma-II: Pathophysiology and Classification01:26

Asthma-II: Pathophysiology and Classification

Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
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...
Asthma III: Clinical Manifestations01:13

Asthma III: Clinical Manifestations

Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...
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.
Asthma-III: Symptoms and Complications01:24

Asthma-III: Symptoms and Complications

Asthma, a common chronic respiratory condition, is classified considering the frequency and severity of symptoms alongside lung function impairment. Understanding this classification is essential for appropriate treatment and management. Here's a detailed look at the classification of asthma and its clinical features and complications:
Classification of Asthma

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Related Experiment Video

Updated: Jun 3, 2026

Asthma Detection Research Based on Voice Signal Processing and Machine Learning
04:04

Asthma Detection Research Based on Voice Signal Processing and Machine Learning

Published on: July 22, 2025

Abnormal vocal cord function in difficult-to-treat asthma.

Kathy Low1, Kenneth K Lau, Peter Holmes

  • 1Respiratory and Sleep Medicine, Monash University and Medical Centre, 246 Clayton Road, Clayton 3168, Melbourne, Australia.

American Journal of Respiratory and Critical Care Medicine
|April 8, 2011
PubMed
Summary
This summary is machine-generated.

Dynamic CT scans reveal that half of difficult-to-treat asthma patients experience abnormal vocal cord narrowing, indicating laryngeal dysfunction as a key factor in upper airway issues.

Related Experiment Videos

Last Updated: Jun 3, 2026

Asthma Detection Research Based on Voice Signal Processing and Machine Learning
04:04

Asthma Detection Research Based on Voice Signal Processing and Machine Learning

Published on: July 22, 2025

Area of Science:

  • Respiratory Medicine
  • Medical Imaging
  • Pulmonology

Background:

  • Upper airway dysfunction is an underrecognized factor in asthma.
  • Current diagnostic methods for vocal cord function lack quantification and clinical utility.

Purpose of the Study:

  • To investigate laryngeal behavior in asthma using dynamic 320-slice computerized tomography (CT).
  • To develop and validate a novel imaging technique for quantifying vocal cord function.

Main Methods:

  • Dynamic 320-slice CT was used to image vocal cord movement.
  • An analysis algorithm was developed and validated in healthy volunteers.
  • The technique was applied to 46 patients with difficult-to-treat asthma.

Main Results:

  • Vocal cord movement was quantified by the ratio of vocal cord to tracheal diameter.
  • Abnormal vocal cord narrowing occurred in 50% of asthma patients, with 19% severe.
  • Laryngeal dysfunction, not just vocal cord issues, was identified as the cause of abnormality.

Conclusions:

  • CT larynx enables noninvasive quantification of laryngeal movement.
  • A significant proportion of difficult-to-treat asthma patients exhibit excessive vocal cord narrowing.
  • This imaging approach highlights upper airway dysfunction's role in asthma, impacting disease management.