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Larynx

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.
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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...

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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...

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Anatomy of Respiratory System II: Lower Respiratory Tract

The lower respiratory tract is anatomically composed of several vital structures, including the larynx, trachea, bronchial tree, alveoli, lungs, and pleurae. Each component has a specific function, and all are intricately connected to ensure efficient respiration.
The Larynx
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Trachea

Trachea

The trachea, commonly known as the windpipe, is a vital part of the human respiratory system. It serves as a passageway for air to travel between the larynx and the bronchi, allowing oxygen to reach the lungs. Let's explore its anatomical features, dimensions, layers of the tracheal wall, associated muscles, and the functions of its parts.
Anatomical Features:
Location: About half of the trachea is situated in the neck, anterior to the esophagus, and extends from the larynx (at the level of the...

Anatomy of Respiratory System I: Upper Respiratory Tract

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
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A tracheostomy is a surgical procedure that creates an artificial opening into the trachea, typically at the second or third cartilaginous ring level. This opening allows the insertion of a tracheostomy tube, which can replace an endotracheal tube, provide mechanical ventilation, bypass an upper airway obstruction, or remove accumulated tracheobronchial secretions.
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Related Experiment Video

Updated: Jul 4, 2026

The Rigid Tube as an Alternative in Controlling the Problematic Airway

The Rigid Tube as an Alternative in Controlling the Problematic Airway

Published on: June 6, 2020

[The laryngeal tube].

L Gaitini¹, V Madrid, M Capdevila

¹Departamento de Anestesiología, Hospital Bnai Zion, Facultad de Medicina, Technion, Instituto de Tecnología de Israel, Haifa, Israel. luis.gaitini@b-zion.org.il

Revista Espanola De Anestesiologia Y Reanimacion

|June 12, 2008

Summary

The laryngeal tube is an effective supraglottic airway device for ventilation during anesthesia and resuscitation. Its various versions offer improved airway seal and effectiveness, aiding in difficult airway management.

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Area of Science:

Anesthesiology
Medical Devices
Emergency Medicine

Background:

The laryngeal tube is a supraglottic airway device used for ventilation.
It is available in multiple versions, including standard, disposable, and dual-lumen models.

Purpose of the Study:

To review the literature on the efficacy and safety of the laryngeal tube.
To compare its performance with other airway devices.

Main Methods:

Literature review of MEDLINE indexed articles up to December 2006.
Search terms included: laryngeal tube, anesthesia, equipment, and airway.

Main Results:

The laryngeal tube offers an effective airway seal, superior to the laryngeal mask.
Complication rates are similar, but the laryngeal tube requires more adjustments.
The LTS II model shows considerable improvement over the standard tube.

Conclusions:

The laryngeal tube is effective for airway management, particularly in difficult airway scenarios.
It serves as a valuable tool in anesthesia and cardiopulmonary resuscitation.