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Related Concept Videos

Physiological Control of Respiration01:23

Physiological Control of Respiration

2.2K
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 II: Neurogenic Control of Respiration01:22

Physiology of Respiration II: Neurogenic Control of Respiration

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The neurogenic control of respiration coordinates various neural networks and pathways to regulate breathing rate and depth, meeting the body's oxygen and carbon dioxide exchange requirements. This system adapts to physiological and environmental conditions, ensuring optimal breathing patterns.
Central Control
The brainstem is the primary site of central control, hosting respiratory centers:
694
Neural Control of Respiration01:18

Neural Control of Respiration

2.6K
The neural regulation of respiration is a meticulously coordinated process primarily controlled by the respiratory centers located within the brainstem. These centers, composed of specialized neurons, transmit nerve impulses that control the contraction and relaxation of our respiratory muscles.
Respiratory Centers in the Brainstem
Two primary areas comprise the respiratory center: the medullary respiratory center in the medulla oblongata and the pontine respiratory group in the pons. The...
2.6K
Other Factors Affecting Respiration Centers01:17

Other Factors Affecting Respiration Centers

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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...
906
Mechanism of Breathing II: Expiration01:23

Mechanism of Breathing II: Expiration

1.2K
The Physiology of Expiration: A Seamless Respiratory Process
Expiration, or exhaling, is a complex physiological process that begins as the inspiratory muscles begin to relax. This relaxation triggers a series of events that epitomize the efficiency of the respiratory system.
Mechanism of Expiration:
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Breathing01:05

Breathing

59.7K
The process of breathing, inhaling and exhaling, involves the coordinated movement of the chest wall, the lungs, and the muscles that move them. Two muscle groups with important roles in breathing are the diaphragm, located directly below the lungs, and the intercostal muscles, which lie between the ribs. When the diaphragm contracts, it moves downward, increasing the volume of the thoracic cavity and creating more room for the lungs to expand. When the intercostal muscles contract, the ribs...
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Related Experiment Video

Updated: Jul 21, 2025

Breathing-controlled Electrical Stimulation BreEStim for Management of Neuropathic Pain and Spasticity
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Breathing-controlled Electrical Stimulation BreEStim for Management of Neuropathic Pain and Spasticity

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Control of Breathing.

Jerome A Dempsey1, Joseph F Welch2

  • 1John Rankin Laboratory of Pulmonary Medicine, Department of Population Health Sciences, University of Wisconsin, Madison, Wisconsin.

Seminars in Respiratory and Critical Care Medicine
|July 26, 2023
PubMed
Summary
This summary is machine-generated.

Recent discoveries reveal key mechanisms in neural breathing control, offering new insights for treating respiratory disorders by understanding ventilation-CO2 relationships and chemoreception.

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Area of Science:

  • Neuroscience
  • Respiratory Physiology

Background:

  • Understanding neural control of breathing is crucial for treating respiratory disorders.
  • Recent advances have illuminated fundamental mechanisms and their clinical relevance.

Approach:

  • Reviewing advances in neural control of breathing.
  • Summarizing mechanisms of central rhythm generation, chemoreception, exercise hyperpnea, plasticity, and sleep-state effects.
  • Applying principles to cardiorespiratory diseases, sleep-disordered breathing, and aging-related conditions.

Key Points:

  • V̇A:V̇CO2:PaCO2 relationships are vital for ventilatory control.
  • Neural pathways for rhythm generation, chemoreception, and exercise responses are increasingly understood.
  • Hypersensitized chemoreception and sleep-state effects contribute to cardiorespiratory diseases.

Conclusions:

  • Neural control of breathing is critical in disease pathogenesis, diagnosis, and treatment.
  • Translational research is advancing the treatment of breathing disorders.
  • Further understanding of ventilatory control mechanisms is essential for clinical applications.