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Related Concept Videos

The Bronchial Tree01:23

The Bronchial Tree

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...
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
Anatomy of Respiratory System II: Lower Respiratory Tract01:31

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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Physical Assessment of the Respiratory Tract II: Inspection01:27

Physical Assessment of the Respiratory Tract II: Inspection

Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
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Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

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Chronic Inflammation
Gross Anatomy of the Lungs01:17

Gross Anatomy of the Lungs

The lungs are a pair of vital organs connected to the trachea via the left and right bronchi. The base of these organs meets the dome-shaped muscle known as the diaphragm. Encased by the pleurae, the lungs contact the mediastinum. The right lung is shorter yet wider, and has a larger volume than the left lung. The left lung has an indentation known as the cardiac notch. The superior region of the lungs is referred to as the apex, whereas the base is the lower region near the diaphragm. The...

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Related Experiment Video

Updated: May 10, 2026

A Standardized Method for Measuring Internal Lung Surface Area via Mouse Pneumonectomy and Prosthesis Implantation
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Is there a correlation between right bronchus length and diameter with age?

José Pinhata Otoch1, Hélio Minamoto, Marcos Perini

  • 1Department of Surgery, Sao Paulo Medical School, Sao Paulo, Brazil.

Journal of Thoracic Disease
|July 5, 2013
PubMed
Summary

Right main bronchial anatomy, including cross-sectional area and its relation to the pulmonary artery, grows with age in males. This knowledge is vital for endoscopic stent placement.

Keywords:
Anatomyagegenderhumanright bronchustrachea

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Last Updated: May 10, 2026

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Area of Science:

  • Anatomy
  • Pulmonology
  • Medical Imaging

Background:

  • Knowledge of right main bronchial anatomy is crucial for endoscopic stent placement.
  • Understanding anatomical variations and growth patterns aids in procedural success.

Purpose of the Study:

  • To describe right bronchial anatomy, cross-sectional area, and its relationship with the right pulmonary artery and patient age.
  • To provide anatomical data relevant to guiding endoscopic procedures.

Main Methods:

  • 134 cadaveric specimens were analyzed.
  • Measurements of bronchial dimensions and cross-sectional areas were taken.
  • Linear regression was used to correlate anatomical features with age.

Main Results:

  • A direct correlation was found between age and tracheal length, right bronchus length, and the area of the right bronchus covered by the right pulmonary artery in males.
  • Proportionality was observed between tracheal and right bronchial dimensions and cross-sectional areas.

Conclusions:

  • Large airways grow progressively with age in males.
  • Age-related changes in bronchial anatomy, particularly in relation to the pulmonary artery, are significant.
  • These findings have implications for age-specific considerations in interventional pulmonology.