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Related Concept Videos

Physiology of Respiration II: Neurogenic Control of Respiration01:22

Physiology of Respiration II: Neurogenic Control of Respiration

639
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:
639
Neural Control of Respiration01:18

Neural Control of Respiration

2.4K
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...
2.4K
Other Factors Affecting Respiration Centers01:17

Other Factors Affecting Respiration Centers

840
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...
840
Chemical Factors Affecting Respiration Centers01:31

Chemical Factors Affecting Respiration Centers

1.1K
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....
1.1K
Physiological Control of Respiration01:23

Physiological Control of Respiration

2.1K
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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Alterations in Respiration II01:30

Alterations in Respiration II

861
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...
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Effect of High-frequency Electrical Stimulation of Olfactory Bulb on Spontaneous Excitatory Postsynaptic Currents in Hippocampal CA1 Pyramidal Cells of Kindling Rats.

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Nasal and oral breathing modes reconfigure brain network dynamics between stabilizing integration and promoting fragmentation.

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Effect of low frequency stimulation of olfactory bulb and olfactory epithelium on epileptiform activity and synaptic plasticity following pentylenetetrazol administration in rats.

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Related Experiment Video

Updated: Jun 29, 2025

Author Spotlight: Exploring Olfactory Influences on Corticospinal Excitability - Insights and Innovations in Neurological Research
06:13

Author Spotlight: Exploring Olfactory Influences on Corticospinal Excitability - Insights and Innovations in Neurological Research

Published on: January 19, 2024

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From nasal respiration to brain dynamic.

Payam Shahsavar1, Sepideh Ghazvineh1, Mohammad Reza Raoufy1,2

  • 1Department of Physiology, Faculty of Medical Sciences, 41616 Tarbiat Modares University , Jalal AleAhmad, Nasr, P.O. Box: 14115-111, Tehran, Iran.

Reviews in the Neurosciences
|April 5, 2024
PubMed
Summary
This summary is machine-generated.

Nasal breathing synchronizes brain activity, enhancing cognitive functions like memory. This review explores how respiratory cycles impact brain networks and offers pathways for cognitive enhancement.

Keywords:
brain oscillationcognitive functionsnasal breathingolfactory bulb

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Respiratory Physiology

Background:

  • Breathing is essential, but the method of respiration, especially nasal breathing, significantly impacts brain activity and cognition.
  • Olfactory sensory neurons activate rhythmically during nasal breathing, influencing widespread brain regions.

Purpose of the Study:

  • To review and synthesize research on the relationship between nasal respiration and brain oscillations in cognitive networks.
  • To explore how nasal breathing affects inter-regional brain communication and cognitive functions.

Main Methods:

  • Literature review synthesizing existing research on nasal respiration and brain activity.
  • Analysis of studies linking respiratory cycles to neural oscillations in cognitive brain regions.

Main Results:

  • Nasal respiration entrains neural oscillations across key cognitive areas like the prefrontal cortex, hippocampus, and amygdala.
  • Phase-locking of neural activity to the respiratory cycle enhances brain communication and is linked to improved memory.

Conclusions:

  • Nasal breathing plays a crucial role in modulating brain network activity and cognitive processes.
  • Targeting the olfactory pathway via nasal breathing presents novel therapeutic opportunities for enhancing emotional and cognitive functions.