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Related Concept Videos

Neural Control of Respiration01:18

Neural Control of Respiration

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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.
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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.
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Physiological Control of Respiration01:23

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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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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.
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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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Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
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Breathing control of vocalization.

Steffen R Hage1,2

  • 1Neurobiology of Social Communication, Department of Otolaryngology-Head and Neck Surgery, Hearing Research Centre, University of Tübingen, Medical Center, Tübingen, Germany.

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Summary
This summary is machine-generated.

Researchers uncovered a key brainstem circuit essential for coordinating voice and breathing. This finding advances our understanding of vocal-respiratory control in the larynx.

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Area of Science:

  • Neuroscience
  • Respiratory Physiology
  • Speech Science

Background:

  • Vocal-respiratory coordination is fundamental for speech production.
  • The neural mechanisms underlying this coordination remain incompletely understood.
  • The brainstem plays a critical role in integrating respiratory and laryngeal functions.

Purpose of the Study:

  • To identify and characterize the specific neural circuit in the brainstem responsible for vocal-respiratory coordination.
  • To elucidate the role of this circuit in controlling laryngeal activity during respiration.

Main Methods:

  • Utilized in vivo electrophysiological recordings in animal models.
  • Employed optogenetic and chemogenetic techniques to manipulate neural activity.
  • Performed laryngeal electromyography and respiratory monitoring.

Main Results:

  • Identified a novel neuronal population within the brainstem.
  • Demonstrated that activation of this circuit directly modulates laryngeal muscle activity.
  • Showed that this circuit is critical for synchronizing laryngeal abduction/adduction with respiratory phases.

Conclusions:

  • A crucial brainstem circuit for vocal-respiratory coordination of the larynx has been revealed.
  • This circuit provides a critical link between respiratory control centers and the laryngeal motor system.
  • Understanding this circuit offers new insights into the neural basis of speech production and potential therapeutic targets for voice disorders.