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Related Concept Videos

Trachea01:22

Trachea

2.7K
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...
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The Bronchial Tree01:23

The Bronchial Tree

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The human bronchi and bronchial tree play a crucial role in the respiratory system, facilitating the exchange of oxygen and carbon dioxide. Let's delve into the intricate structure and functions of these respiratory components.
The trachea, commonly known as the windpipe, is a tube that connects the larynx (voice box) to the bronchi. At a point called the carina, it bifurcates into two primary bronchi. The right primary bronchus is wider, shorter, and more vertical than the left primary...
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Anatomy of Respiratory System II: Lower Respiratory Tract01:31

Anatomy of Respiratory System II: Lower Respiratory Tract

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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
It is located between the pharynx and the trachea, acts as a passageway for air, and hosts several critical structures, such as the epiglottis, vocal cords, and glottis. The epiglottis acts as a gateway, guiding food to the...
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Tracheostomy: Procedure and Tubes01:28

Tracheostomy: Procedure and Tubes

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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.
Tracheostomy tubes can be made of semiflexible plastic (polyurethane or silicone), rigid plastic, or metal, and they come in...
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Oxygen Delivering System III: Tracheostomy and T-piece01:23

Oxygen Delivering System III: Tracheostomy and T-piece

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Oxygen delivery is critical in clinical care, especially for patients with respiratory disorders or those undergoing surgical procedures. Various systems, such as tracheostomy and the T-piece, deliver oxygen to the lungs, ensuring adequate arterial oxygenation.
Tracheostomy
A tracheostomy is a surgically created opening (stoma) in the anterior part of the trachea. It is used to establish a patient airway, bypass an upper airway obstruction, simplify the removal of secretions, permit long-term...
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Anatomy of Respiratory System I: Upper Respiratory Tract01:29

Anatomy of Respiratory System I: Upper Respiratory Tract

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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....
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Related Experiment Video

Updated: Sep 10, 2025

Endotracheal Intubation via Tracheotomy and Subsequent Thoracotomy in Rats for Non-Survival Applications
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Endotracheal Intubation via Tracheotomy and Subsequent Thoracotomy in Rats for Non-Survival Applications

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True Tracheal Bronchus.

Ambika Sharma1, Govind Singh Rajawat2, Mahesh Gupta3

  • 1Assistant Professor, Department of Respiratory Medicine, SMS Medical College, Jaipur, Rajasthan, India, Corresponding Author.

The Journal of the Association of Physicians of India
|August 21, 2025
PubMed
Summary
This summary is machine-generated.

A rare "pig bronchus" (tracheal bronchus) was incidentally discovered during a patient's evaluation for a left hilar mass. This congenital anomaly, also known as a "true tracheal bronchus," is a significant finding in thoracic imaging.

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Heterotopic and Orthotopic Tracheal Transplantation in Mice used as Models to Study the Development of Obliterative Airway Disease
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Area of Science:

  • Thoracic Imaging
  • Congenital Pulmonary Anomalies
  • Bronchial Anatomy

Background:

  • A 35-year-old male presented with chest pain and cough, leading to the discovery of a left hilar mass.
  • Initial imaging revealed a mass involving the left main bronchus.
  • A rare congenital bronchial anomaly was incidentally identified during the diagnostic workup.

Purpose of the Study:

  • To report the incidental finding of a tracheal bronchus during the investigation of a hilar mass.
  • To describe the anatomical characteristics of this rare congenital anomaly.
  • To highlight the importance of recognizing incidental findings in thoracic imaging.

Main Methods:

  • Chest radiography and computed tomography (CT) of the chest were performed.
  • Multiplanar reconstruction of CT images was utilized for detailed anatomical assessment.
  • Flexible bronchoscopy was conducted for biopsy of the hilar mass and direct visualization of the airway.

Main Results:

  • A left hilar mass encasing the left main bronchus was identified.
  • An incidental finding of a right-sided tracheal bronchus (also termed "pig bronchus" or "bronchus suis") was noted.
  • Bronchoscopy confirmed an accessory bronchial opening supplying the right upper lobe, originating from the trachea.

Conclusions:

  • The tracheal bronchus is a rare congenital variation in bronchial anatomy.
  • Incidental identification of such anomalies during imaging for other pathologies is crucial.
  • Awareness of the "pig bronchus" is important for accurate interpretation of thoracic imaging and airway assessment.