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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...
The Hyoid Bone01:12

The Hyoid Bone

The hyoid bone is a small U-shaped bone located in the upper neck at the level of the inferior mandible, with its tips pointing posteriorly. It does not directly articulate with any other bone in the body. The hyoid acts as the attachment site for the tongue, the larynx, and the pharynx. It is held in position by a series of small muscles attached from above or below. These muscles help to move the hyoid up/down or forward/back in coordination with movements of the tongue, larynx, and pharynx...
Pharynx01:20

Pharynx

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...
Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques01:30

Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques

Airway management is essential in emergency and surgical medicine, ensuring ventilation and oxygenation in patients who cannot maintain their own airway. Clinicians use a range of techniques and devices to secure the airway, depending on the patient’s condition and the clinical context. Key methods include endotracheal intubation, rapid sequence intubation (RSI), supraglottic airway devices, and advanced visualization aids. In cases where these approaches fail, surgical airway interventions are...
Anatomy of Respiratory System I: Upper Respiratory Tract01:29

Anatomy of Respiratory System I: Upper Respiratory Tract

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.
Esophageal Strictures-I: Introduction01:30

Esophageal Strictures-I: Introduction

Esophageal strictures involve abnormal narrowing or tightening of the esophagus. They vary in length and severity, ranging from mild constriction to complete obstruction, and are classified as benign (noncancerous) or malignant (cancerous).
Etiology
The primary cause of esophageal strictures is long-standing gastroesophageal reflux disease (GERD), accounting for about 70 to 80% of adult cases. Chronic acid reflux can lead to injury and scarring of the esophageal lining, culminating in...

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Related Experiment Video

Updated: Jul 14, 2026

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
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Toward a Functional Terminology: Reconsidering "Minor Laryngeal Clefts" as Interarytenoid Dysfunction.

Colin Smith1, Nancy M Bauman1,2, Hengameh K Behzadpour2

  • 1George Washington University School of Medicine and Health Sciences, Washington, DC, USA.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|July 13, 2026
PubMed
Summary

Pediatric otolaryngology needs clearer terms for laryngeal clefts. We propose "interarytenoid dysfunction" (IAD) to better describe airway protection issues, replacing ambiguous anatomical terms.

Keywords:
Laryngeal cleftaspirationinterarytenoidpediatric otolaryngology

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Area of Science:

  • Pediatric Otolaryngology
  • Laryngeal Anatomy
  • Airway Protection

Background:

  • Current terminology for minor laryngeal clefts, like Type 1, causes confusion in pediatric otolaryngology.
  • Ambiguous terms such as 'deep interarytenoid notch' lack validated correlates and hinder diagnosis.
  • Clinical observations show children with aspiration and intact supraglottic mucosa benefit from interarytenoid augmentation, challenging existing classifications.

Purpose of the Study:

  • To propose a new term, 'interarytenoid dysfunction' (IAD), to replace ambiguous descriptors for minor laryngeal clefts.
  • To emphasize the functional role of the interarytenoid region in airway protection over indeterminate anatomical features.
  • To improve diagnostic consistency and outcome comparisons in pediatric airway disorders.

Main Methods:

  • Review of existing terminology and classifications for laryngeal clefts.
  • Analysis of clinical observations regarding aspiration and response to interarytenoid augmentation.
  • Proposal of a new functional term based on clinical evidence.

Main Results:

  • Existing terms for minor laryngeal clefts are ambiguous and inconsistently applied.
  • The proposed term 'interarytenoid dysfunction' (IAD) better reflects the functional deficit.
  • IAD focuses on the functional contribution to airway protection, aiding clearer diagnosis.

Conclusions:

  • 'Interarytenoid dysfunction' (IAD) is proposed as a more accurate and functional descriptor for specific pediatric laryngeal anomalies.
  • This new terminology aims to resolve confusion and improve clinical practice in pediatric otolaryngology.
  • Adopting IAD will facilitate reproducible diagnosis and comparative outcome studies.