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Related Concept Videos

Assessment of Diffusion and Perfusion01:17

Assessment of Diffusion and Perfusion

Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this principle...
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The process of breathing involves the periodic intake and expulsion of air, known as the respiratory cycle, which typically lasts about five seconds. Modeling the volume of air inhaled into the lungs as a function of time provides insight into both the dynamics and efficiency of pulmonary ventilation. This volume is determined by integrating the airflow rate over time, which captures the cumulative effect of air entering the lungs.Sinusoidal Model of AirflowAirflow during respiration is not...
Physiological Control of Respiration01:23

Physiological Control of Respiration

Introduction
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
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Mechanism of Breathing I: Inspiration

Introduction to Inspiration: The Respiratory System in Action
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The Respiratory System01:16

The Respiratory System

The respiratory system is comprised of the organs that enable breathing. Air enters the nostrils and mouth, followed by the pharynx (throat) and larynx (voice box), which lead to the trachea (windpipe). In the thoracic cavity, the trachea splits into two bronchi that allow air to enter the lungs. The bronchi split into progressively smaller bronchioles and terminate in small groups of tiny sacs in the lungs called alveoli, where gas exchange occurs.

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Related Experiment Video

Updated: Jun 8, 2026

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
08:23

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Published on: March 9, 2018

Exhaled breath analysis: The new interface between medicine and engineering.

Alquam Mashir1, Raed A Dweik

  • 1Department of Pathobiology/Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, United States.

Advanced Powder Technology : the International Journal of the Society of Powder Technology, Japan
|October 16, 2010
PubMed
Summary

Exhaled breath testing offers a non-invasive, low-cost, and safe diagnostic method. Advancing this field requires collaboration between technical, medical, and industry experts for clinical application and commercialization.

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Last Updated: Jun 8, 2026

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
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Published on: February 14, 2019

Area of Science:

  • Biomedical Engineering
  • Clinical Diagnostics
  • Pulmonology

Background:

  • Exhaled breath testing is an emerging non-invasive diagnostic tool.
  • It holds potential for evaluating various health and disease states, particularly in the lungs.
  • Advantages include being non-invasive, cost-effective, and safe compared to traditional methods.

Purpose of the Study:

  • To highlight the growing importance of exhaled breath testing.
  • To identify key requirements for advancing the field of breath analysis.
  • To emphasize the need for interdisciplinary collaboration.

Main Methods:

  • This study is a review and perspective piece.
  • It analyzes the current state and future potential of exhaled breath testing.
  • It identifies the necessary components for successful clinical translation.

Main Results:

  • Exhaled breath testing is a significant non-invasive diagnostic approach.
  • Collaboration is crucial for device development and clinical integration.
  • Bridging the gap between technology, clinical needs, and commercialization is essential.

Conclusions:

  • Further advancement in exhaled breath testing necessitates strong partnerships.
  • Integrating technical, medical, and commercial expertise will drive innovation.
  • Successful commercialization hinges on collaborative efforts to bring devices to market.