Related Experiment Video

Updated: Aug 17, 2026

Expired CO2 Measurement in Intubated or Spontaneously Breathing Patients from the Emergency Department
07:52

Expired CO2 Measurement in Intubated or Spontaneously Breathing Patients from the Emergency Department

Published on: January 29, 2011

Factors affecting carbon dioxide homeostasis during controlled ventilation with circle systems

C G Schoonbee, C M Conway

    British Journal of Anaesthesia
    |May 1, 1981
    PubMed

    More Related Videos

    A CO2 Concentration Gradient Facility for Testing CO2 Enrichment and Soil Effects on Grassland Ecosystem Function10:19

    A CO2 Concentration Gradient Facility for Testing CO2 Enrichment and Soil Effects on Grassland Ecosystem Function

    Published on: November 21, 2015

    Combining Volumetric Capnography And Barometric Plethysmography To Measure The Lung Structure-function Relationship08:25

    Combining Volumetric Capnography And Barometric Plethysmography To Measure The Lung Structure-function Relationship

    Published on: January 8, 2019

    Related Concept Videos

    Factors Affecting Respiration01:24

    Factors Affecting Respiration

    Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:
    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...
    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.
    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...
    Factors Affecting Pulmonary Ventilation01:19

    Factors Affecting Pulmonary Ventilation

    Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
    Alveolar Surface Tension
    The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
    Chemical Factors Affecting Respiration Centers01:31

    Chemical Factors Affecting Respiration Centers

    Chemical factors such as changing CO2, O2, and H+ levels in arterial blood play a critical role in influencing respiration depth and rates. These variations are detected by chemoreceptors—specialized sensors located in two primary body areas. Central chemoreceptors are found throughout the brain stem, including the ventrolateral medulla, while peripheral chemoreceptors are located in the aortic arch and carotid arteries.
    CO2 has a potent influence on respiration and is strictly regulated. Under...
    Other Factors Affecting Respiration Centers01:17

    Other Factors Affecting Respiration Centers

    Breathing is primarily an involuntary activity regulated by the brainstem respiratory centers. However, it can also be consciously controlled, allowing us to hold our breath or take deeper breaths when needed. This voluntary control is facilitated by the cerebral motor cortex, which bypasses the medullary centers to stimulate the respiratory muscles directly.
    However, the ability to hold one's breath voluntarily is not limitless. When the CO2 concentration in the blood reaches a critical level,...