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Related Concept Videos

Other Pulmonary Disorders01:17

Other Pulmonary Disorders

Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
Alterations in Respiration II01:30

Alterations in Respiration II

There are numerous types of normal and abnormal respiration. Based on ventilatory movements, breathing patterns are classified as regular, deep, or shallow. Examples include Biot's breathing, Cheyne-Stokes respiration, Kussmaul's breathing, hyperventilation, and hypoventilation. Each pattern is clinically significant and aids in evaluating patients.
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes include...
Mechanical Ventilation II: Invasive Ventilation01:23

Mechanical Ventilation II: Invasive Ventilation

Ventilators are essential medical equipment used to aid patients with respiratory difficulties. Their primary function is to assist or replace spontaneous breathing by providing mechanical ventilation. There are two general classes of mechanical ventilators: negative-pressure and positive-pressure ventilators.
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...
Common Respiratory Disorders01:31

Common Respiratory Disorders

Respiratory disorders, a prevalent health concern globally, are generally divided into two primary categories: upper and lower respiratory tract disorders. The categorization is based on the area of the respiratory system they affect.
Upper respiratory disorders impact the airways above the vocal cords, encompassing areas like the nose, sinuses, and throat. Various conditions fall under this category, including the common cold and allergic rhinitis. These disorders can stem from several causes,...
Mechanical Ventilation I: Indication and Settings01:29

Mechanical Ventilation I: Indication and Settings

Mechanical ventilation is a life-saving technique for managing acute respiratory failure and other respiratory complications. The process involves using a machine known as a ventilator to supply oxygen to the lungs and assist in removing carbon dioxide. It serves as a bridge to long-term mechanical ventilation or a temporary measure until ventilatory support is discontinued. The ventilator can maintain this function for a prolonged period, providing critical support for patients until they can...
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...

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3D Cine Magnetic Resonance Imaging of Respiratory Motion in Mechanically Ventilated Mice and Rats
08:22

3D Cine Magnetic Resonance Imaging of Respiratory Motion in Mechanically Ventilated Mice and Rats

Published on: September 19, 2025

Ventilatory disorders.

Giorgio Silvestrelli1, Alessia Lanari, Andrea Droghetti

  • 1Stroke Unit, Division of Neurology, Carlo Poma Hospital, Mantova, Italy. giorgio.silvestrelli@aopoma.it

Frontiers of Neurology and Neuroscience
|March 2, 2012
PubMed
Summary
This summary is machine-generated.

Breathing relies on brainstem neural circuits for rhythmic control. Vascular neurological disorders can impair this network, leading to breathing dysfunction and impacting stroke management.

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Area of Science:

  • Neuroscience
  • Physiology

Background:

  • Breathing is a vital homeostatic process regulated by neural circuits in the brainstem.
  • These circuits generate rhythmic respiratory movements essential for life, involving inspiration, post-inspiration, and expiration phases.
  • The respiratory network exhibits a hierarchical organization of interacting circuits controlling rhythm and pattern formation.

Purpose of the Study:

  • To explore the neural mechanisms underlying breathing regulation.
  • To understand the impact of vascular neurological disorders on respiratory control.
  • To highlight the importance of addressing respiratory dysfunction in stroke management.

Main Methods:

  • Analysis of neural circuits in the brainstem responsible for respiratory control.
  • Investigation of the state-dependent expression of rhythmogenic mechanisms.
  • Examination of respiratory motor patterns during normal breathing.

Main Results:

  • Breathing rhythm originates from complex macro- and microcircuits in the brainstem.
  • Respiratory network reduction reveals a spatial and dynamic hierarchy of interacting circuits.
  • Vascular neurological disorders affecting these areas can cause impaired respiratory activity, including sleep apnea and dysrhythmic breathing.
  • Respiratory dysfunction is an early and significant manifestation of vascular neurologic disorders.

Conclusions:

  • The brainstem's neural network is critical for maintaining rhythmic breathing.
  • Disruptions to this network by vascular neurological disorders lead to significant respiratory impairments.
  • Effective stroke management requires attention to ventilation control and correction of breathing behavior abnormalities.