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Related Concept Videos

The Respiratory System01:16

The Respiratory System

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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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Physiological Control of Respiration01:23

Physiological Control of Respiration

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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.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
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Physiology of Respiration I: Functions of the Respiratory System01:27

Physiology of Respiration I: Functions of the Respiratory System

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The respiratory system is crucial for exchanging oxygen (O2) and carbon dioxide (CO2) between the atmosphere and the bloodstream, maintaining the body's balance. Beyond gas exchange, it helps regulate acid-base balance, purify inhaled air, and enable vocalization.
Fundamental Processes in Respiration:
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Respiration01:24

Respiration

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Overview of the Respiratory System and Energy Production
Energy production in the human body is primarily fueled by oxidation, a process where food molecules are burned by combining with oxygen to produce carbon dioxide and water. This vital metabolic process sustains life, and is supported intricately by the respiratory system.
Structure and Function of the Respiratory System:
The respiratory system is a complex network of structures that includes the nose, oropharynx, larynx, trachea,...
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Overview of Respiratory System01:23

Overview of Respiratory System

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The respiratory system is a complex biological apparatus that facilitates the exchange of gases, specifically oxygen and carbon dioxide, between our bodies and the environment. This system plays a vital role in the physiological process of respiration, an essential function for sustaining life.
What is the Respiratory System?
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Respiration and Gaseous Exchange01:20

Respiration and Gaseous Exchange

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The intricate interplay between the cardiovascular and respiratory systems is crucial for efficiently transporting respiratory gases throughout the body. Let us explore the cardiovascular system's multifaceted functions, emphasizing its pivotal role in gas exchange.
Respiration involves the exchange of gases, especially oxygen (O2) and carbon dioxide (CO2), between the alveoli and body cells, a process facilitated by blood circulation. As a result, the cardiovascular system, which involves...
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Related Experiment Video

Updated: May 5, 2026

Author Spotlight: Advancing Rapid Detection of Respiratory Pathogens Using Microfluidic Chip
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Author Spotlight: Advancing Rapid Detection of Respiratory Pathogens Using Microfluidic Chip

Published on: March 29, 2024

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Respiratory physiology on a chip.

Sanjeev Kumar Mahto1, Janna Tenenbaum-Katan, Josué Sznitman

  • 1Department of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.

Scientifica
|November 27, 2013
PubMed
Summary
This summary is machine-generated.

Microfluidic devices offer advanced in vitro models for respiratory physiology research. These microfluidic-based in vitro devices (μFIVDs) improve understanding of lung diseases and artificial lungs (AL).

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Area of Science:

  • Respiratory Physiology and Pathophysiology
  • Biomedical Engineering
  • In Vitro Modeling

Background:

  • Current in vitro models struggle to replicate the complex cellular structure and physiological function of the respiratory environment.
  • This limitation hinders a comprehensive understanding of lung diseases and respiratory physiology.
  • Advancements in microfluidic technology have opened new avenues for creating more accurate lung airway models.

Purpose of the Study:

  • To review recent advancements in microfluidic-based in vitro devices (μFIVDs) for modeling lung structure and airways over the past decade.
  • To discuss the diverse applications of these μFIVDs in respiratory physiology.
  • To highlight key areas including artificial lungs (AL), air-liquid interface (ALI), liquid plugs/cellular injury, and the alveolar-capillary barrier (ACB).

Main Methods:

  • Review of scientific literature focusing on microfluidic-based in vitro devices (μFIVDs) applied to respiratory research.
  • Analysis of studies published within the last ten years.
  • Categorization of μFIVD applications into four key areas of respiratory physiology.

Main Results:

  • Microfluidic technology has significantly improved the fidelity of in vitro lung airway models.
  • μFIVDs have enabled progress in simulating artificial lungs (AL), air-liquid interface (ALI) dynamics, liquid plugs, cellular injury, and the alveolar-capillary barrier (ACB).
  • These models offer enhanced capabilities for studying respiratory diseases and physiological functions.

Conclusions:

  • Microfluidic-based in vitro devices (μFIVDs) represent a significant leap forward in respiratory research.
  • These advanced models are crucial for overcoming previous limitations in studying lung diseases and respiratory physiology.
  • Continued development and application of μFIVDs promise further breakthroughs in understanding and treating respiratory conditions.