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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...
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:
The Auditory Ossicles01:11

The Auditory Ossicles

The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. These bones develop during the fetal stage and are the ones to ossify first. They are fully mature at birth and do not grow afterward.
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
Cardiovascular System Abnormal Findings II: Auscultation01:25

Cardiovascular System Abnormal Findings II: Auscultation

Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
Respiratory System Abnormal Finding I: Inspection and Percussion01:30

Respiratory System Abnormal Finding I: Inspection and Percussion

Respiratory system abnormalities are a significant concern in healthcare due to their potential to indicate underlying severe conditions like Chronic Obstructive Pulmonary Disease (COPD), asthma, and pneumonia. These abnormalities can often be detected through physical examination methods like inspection and percussion.
Inspection Findings
During an inspection, several findings may suggest the presence of respiratory distress or disease. Pursed-lip breathing, where exhalation is slowed by...
Deglutition01:25

Deglutition

Swallowing, otherwise known as deglutition, facilitates the transport of food from the mouth to the stomach. It is a multifaceted process that involves both the tongue and the muscles of the throat and esophagus. Saliva and mucus aid in this process, which takes approximately 4 to 8 seconds for semi-solid or solid food and around 1 second for liquids or very soft food.
Swallowing can be divided into three stages: the voluntary phase, the pharyngeal phase, and the esophageal phase. Although the...

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Related Experiment Video

Updated: May 28, 2026

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
07:45

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

Published on: December 1, 2023

[Vocal cord dysfunction].

Gilles Garcia1

  • 1Service des explorations fonctionnelles multidisciplinaires, hôpital Antoine-Béclère, 92140 Clamart. gilles.garcia@abc.aphp.fr

La Revue Du Praticien
|November 2, 2011
PubMed
Summary
This summary is machine-generated.

Vocal cord dysfunction (VCD) mimics asthma symptoms due to paradoxical vocal cord adduction during breathing. Diagnosis requires laryngoscopy, but intermittent symptoms can lead to missed diagnoses, delaying proper phoniatric rehabilitation.

Related Experiment Videos

Last Updated: May 28, 2026

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
07:45

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

Published on: December 1, 2023

Area of Science:

  • Otolaryngology
  • Pulmonology
  • Speech-Language Pathology

Context:

  • Vocal cord dysfunction (VCD) presents with paradoxical vocal cord adduction, often mistaken for asthma.
  • Patients with severe asthma may actually have undiagnosed VCD.
  • The intermittent nature of VCD symptoms complicates diagnosis.

Purpose:

  • To highlight the diagnostic challenges of vocal cord dysfunction.
  • To differentiate VCD from asthma and severe asthma.
  • To emphasize the importance of laryngoscopic examination in VCD diagnosis.

Summary:

  • Vocal cord dysfunction is characterized by paradoxical vocal cord adduction during inspiration, frequently misdiagnosed as asthma.
  • Laryngoscopic examination is crucial for diagnosis, but intermittent symptoms can lead to false negatives.
  • Phoniatric rehabilitation is the primary therapeutic approach for VCD.

Impact:

  • Improved diagnostic accuracy for VCD, reducing misdiagnosis as asthma.
  • Timely initiation of appropriate phoniatric rehabilitation for VCD patients.
  • Enhanced understanding of VCD's clinical presentation and diagnostic limitations.