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Related Concept Videos

Anatomy of Respiratory System I: Upper Respiratory Tract01:29

Anatomy of Respiratory System I: Upper Respiratory Tract

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The upper respiratory tract plays a vital role in the respiratory system, comprising several structures that facilitate air intake and prepare air for the lungs. It also serves as the first line of defense against pathogens and particles. This tract includes the nose and nasal cavity, the oral cavity, the paranasal sinuses, and the pharynx, each with specific functions and features.
Nose and nasal cavity
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Nose and Nasal Cavity01:24

Nose and Nasal Cavity

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The nose is composed of an observable exterior segment (external nose) and an internal segment within the skull known as the nasal cavity (internal nose). The external nose, visible on the face, consists of a framework of bone and hyaline cartilage enveloped in skin and muscle and lined with a mucous membrane. This structure is supported by the frontal bone, nasal bones, and maxillary bone and is supplemented by a cartilaginous framework comprising the septal nasal cartilage, lateral nasal...
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Suctioning the Nasopharyngeal Airway01:29

Suctioning the Nasopharyngeal Airway

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Nasopharyngeal suctioning is a procedure to remove secretions from the upper part of the respiratory tract that the patient cannot clear independently. It helps maintain airway patency and prevents complications such as aspiration pneumonia.
Equipment Required
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Upper Respiratory Drugs: Decongestants01:27

Upper Respiratory Drugs: Decongestants

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Decongestants are a class of medications used primarily to alleviate nasal congestion, a common symptom resulting from allergies, colds, sinusitis, and other upper respiratory tract infections. These drugs work by activating α-adrenergic receptors, constricting small blood vessels in the nasal membranes. This action results in the opening of clogged nasal passages, thereby facilitating sinus drainage and relieving congestion.
Most decongestants are readily available over-the-counter in...
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Hyperpnea and Hyperventilation01:25

Hyperpnea and Hyperventilation

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Hyperventilation refers to a higher-than-normal rate and depth of breathing, often associated with anxiety attacks. This excessive breathing surpasses the body's need to expel CO2, leading to a condition known as hypocapnia - an unusually low level of carbon dioxide in the blood. Hypocapnia can constrict cerebral blood vessels, reducing blood flow to the brain, which may result in dizziness or fainting. Early signs include tingling and muscle spasms in the hands and face, caused by falling...
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Assessment of Airway, Skin Color, and Use of Accessory Muscles01:30

Assessment of Airway, Skin Color, and Use of Accessory Muscles

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A thorough assessment of respiratory health is paramount in clinical settings to identify and manage respiratory distress and ensure adequate oxygenation. This article elaborates on the critical aspects of respiratory evaluation, including airway assessment, skin color examination, and the observation of accessory muscle use, which are integral to effectively diagnosing and managing patients with respiratory conditions.
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The initial evaluation of a patient's respiratory system...
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Related Experiment Video

Updated: Mar 22, 2026

Using Near-Infrared Spectroscopy Wearable Devices to Identify Central Versus Peripheral Limitations During Exercise
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Using Near-Infrared Spectroscopy Wearable Devices to Identify Central Versus Peripheral Limitations During Exercise

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Nasal function and dysfunction in exercise.

A Walker1, P Surda1, M Rossiter2

  • 1Department of ENT Surgery,St George's Hospital,London,UK.

The Journal of Laryngology and Otology
|April 21, 2016
PubMed
Summary
This summary is machine-generated.

Exercise can negatively impact nasal function, potentially affecting lower airway health and increasing susceptibility to infections. Further research into exercise-induced rhinitis is crucial for athletes and regular exercisers.

Keywords:
AthletesExerciseNasal ObstructionNosePhysiologyRhinitisSports Medicine

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Area of Science:

  • Respiratory Medicine
  • Exercise Physiology

Background:

  • The nose plays a vital role in airway conditioning and immune defense, not just air conduction.
  • Recent understanding highlights the functional connection between the upper and lower respiratory tracts.

Purpose of the Study:

  • To review the physiological and pathological effects of exercise on the nasal cavity.
  • To examine the relationship between nasal health, quality of life, lower airway function, and respiratory infections.

Main Methods:

  • Narrative review of relevant scientific literature.
  • Analysis of physiological and pathological responses to exercise and training.
  • Clinical contextualization of findings.

Main Results:

  • Significant evidence links nasal dysfunction to exercise and lower airway dysfunction.
  • Upper and lower airway dysfunction are implicated in upper respiratory tract infection symptoms.

Conclusions:

  • Nasal dysfunction during exercise can cause significant illness in athletes.
  • Further investigation into exercise-induced rhinitis is warranted.