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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...
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...
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...
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.
Suctioning the Nasopharyngeal Airway01:29

Suctioning the Nasopharyngeal Airway

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

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Related Experiment Video

Updated: May 10, 2026

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

Arthur Guedel's laryngeal plug.

R P Haridas1, T T Nichols

  • 1Department of Anaesthesia and Pain Medicine, Royal Perth Hospital, Perth, Western Australia, Australia. rajesh.haridas@bigpond.com

Anaesthesia and Intensive Care
|July 2, 2013
PubMed
Summary
This summary is machine-generated.

The laryngeal plug, a 1930s airway device, offered an alternative to tracheal tube cuffs. Developed by Arthur Guedel, its details were later published by Gilbert Troup.

Keywords:
Arthur Ernest GuedelGilbert Reynolds Trouplaryngeal plug

More Related Videos

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

Published on: December 1, 2023

Related Experiment Videos

Last Updated: May 10, 2026

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

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:

  • Anesthesiology
  • Medical Devices
  • Airway Management

Background:

  • Arthur E. Guedel developed the laryngeal plug in the 1930s as an alternative to inflatable cuffs on tracheal tubes.
  • The laryngeal plug was designed to facilitate airway management during medical procedures.
  • Guedel's original work on the device was not formally published.

Observation:

  • The laryngeal plug is a historically significant but little-known airway management device.
  • Detailed descriptions of the laryngeal plug were later provided by Australian anaesthetist Gilbert Troup.
  • The device represented an early innovation in tracheal intubation and airway sealing.

Findings:

  • The laryngeal plug served as a precursor or alternative to modern cuffed tracheal tubes.
  • Its design aimed to provide a seal within the larynx, distinct from endotracheal intubation.
  • The lack of original publication contributed to its obscurity.

Implications:

  • Understanding the laryngeal plug provides historical context for the evolution of airway devices.
  • It highlights the innovative approaches to airway management in the early 20th century.
  • Further research into historical airway devices can inform contemporary practices and device design.