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Related Concept Videos

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:
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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...
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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.
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...
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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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Nervous System01:21

Nervous System

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The nervous system coordinates body functions through its complex network of nerve cells, enabling sensation and movement. It is divided into two primary parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS is composed of the brain and the spinal cord. The brain acts as the body's control center, processing sensory information and coordinating responses. The spinal cord functions as a major signaling pathway for the brain and the rest of the body.
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Gross Anatomy of the Lungs01:17

Gross Anatomy of the Lungs

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The lungs are a pair of vital organs connected to the trachea via the left and right bronchi. The base of these organs meets the dome-shaped muscle known as the diaphragm. Encased by the pleurae, the lungs contact the mediastinum. The right lung is shorter yet wider, and has a larger volume than the left lung. The left lung has an indentation known as the cardiac notch. The superior region of the lungs is referred to as the apex, whereas the base is the lower region near the diaphragm. The...
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Related Experiment Video

Updated: May 4, 2026

Electrophysiology on Isolated Brainstem-spinal Cord Preparations from Newborn Rodents Allows Neural Respiratory Network Output Recording
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Electrophysiology on Isolated Brainstem-spinal Cord Preparations from Newborn Rodents Allows Neural Respiratory Network Output Recording

Published on: November 19, 2015

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Breathing and the nervous system.

Mian Zain Urfy1, Jose I Suarez1

  • 1Department of Neurology, Baylor College of Medicine, Houston, TX, USA.

Handbook of Clinical Neurology
|December 25, 2013
PubMed
Summary
This summary is machine-generated.

Breathing involves complex neural control from the brainstem and cortex, influenced by chemical and mechanical feedback. Understanding these intricate respiratory control mechanisms is vital for diagnosing neurological disorders.

Keywords:
Breathingcentral nervous systemcomaperipheral nervous system

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Area of Science:

  • Neuroscience
  • Physiology

Background:

  • Breathing is regulated by both voluntary cortical and automatic subcortical neural pathways.
  • The brainstem, containing respiratory centers, generates rhythmic breathing patterns.

Observation:

  • Cortical output travels via the corticospinal tract; brainstem output uses the reticulospinal tract.
  • Brainstem respiratory nuclei receive extensive feedback from peripheral chemoreceptors, mechanoreceptors, and cranial nerves.
  • Central chemoreceptors in the brainstem monitor blood carbon dioxide and pH levels.

Findings:

  • The pneumotaxic center, dorsal, and ventral respiratory groups in the pons and medulla act as rhythm generators.
  • Neural and humoral feedback mechanisms modulate respiratory rhythm generation.
  • Neurologic conditions like stroke and neurodegenerative diseases can significantly impair respiratory function.

Implications:

  • Dysfunction in respiratory control pathways can manifest as early symptoms of neurological diseases.
  • A deeper clinical understanding of respiratory neurophysiology is necessary for improved patient care.
  • Further research is crucial to fully elucidate the complexities of respiratory control.