Related Experiment Video
Updated: Aug 10, 2026

07:15
Intranasal Administration of CNS Therapeutics to Awake Mice
Published on: April 8, 2013
Neural control of human nasal secretion
1National Heart and Lung Institute, London, UK.
Pulmonary Pharmacology
|January 1, 1991
Summary
Sensory nerves and parasympathetic reflexes are key to nasal symptoms like itching and congestion in allergic and non-allergic nasal disorders. Understanding nasal anatomy and provocation studies helps explain these processes.
Area of Science:
- Rhinology
- Neuroscience
- Immunology
Background:
- Allergic and non-allergic nasal disorders share symptoms like itching, discharge, congestion, and airflow obstruction.
- Sensory nerve activity and parasympathetic reflexes are implicated in the pathophysiology of these nasal symptoms.
- Nasal provocation studies offer insights into the mechanisms of nasal secretion and airflow obstruction.
Purpose of the Study:
- To review the anatomy of the nasal mucosa, vasculature, and innervation.
- To discuss the role of sensory nerves and parasympathetic reflexes in nasal disorders.
- To present findings from human nasal provocation studies.
Main Methods:
- Review of anatomical and physiological literature on the nasal mucosa.
- Analysis of results from human nasal provocation studies.
- Discussion of the neuro-anatomical basis of nasal symptoms.
Main Results:
- Detailed review of nasal mucosa anatomy, vasculature, and innervation.
- Explanation of how sensory nerves and parasympathetic reflexes contribute to nasal symptoms.
- Presentation of data from nasal provocation studies on secretions and airflow.
Conclusions:
- Sensory nerves and parasympathetic reflexes are critical in both allergic and non-allergic nasal pathologies.
- Nasal provocation studies provide valuable data on the mechanisms underlying nasal secretions and obstruction.
- A comprehensive understanding of nasal neuro-anatomy is essential for managing nasal disorders.
Related Concept Videos
Neural Regulation
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
Physiological Control of Respiration
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...
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...
Brainstem: Control Centers of Medulla
The medulla oblongata is a crucial part of the brainstem responsible for controlling various autonomic and involuntary functions. It contains several nuclei, including the olivary, cuneate, gracile, and solitary nuclei.
Olivary Nucleus
The olivary nucleus, or inferior olivary nucleus, is located within the ventrolateral part of the medulla oblongata. It is primarily involved in motor coordination and motor learning. The olivary nucleus receives input from the spinal cord, cerebellum, and motor...
Olivary Nucleus
The olivary nucleus, or inferior olivary nucleus, is located within the ventrolateral part of the medulla oblongata. It is primarily involved in motor coordination and motor learning. The olivary nucleus receives input from the spinal cord, cerebellum, and motor...
Physiology of Smell and Olfactory Pathway
Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
The olfactory...
Neural Control of Respiration
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...
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...
Physiology of Respiration II: Neurogenic Control of Respiration
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:
Central Control
The brainstem is the primary site of central control, hosting respiratory centers:

