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Related Concept Videos

Larynx01:21

Larynx

6.3K
The human larynx, often referred to as the voice box, is an intricate organ located in the neck. It serves as a pathway for air to enter the lungs during respiration and is an essential component of voice production.
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids,...
6.3K
Chronic Pharyngitis01:23

Chronic Pharyngitis

15.2K
Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
15.2K
Acute Pharyngitis01:30

Acute Pharyngitis

6.0K
Introduction
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
6.0K
Pulmonary Cycle: Exhalation01:17

Pulmonary Cycle: Exhalation

4.9K
In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...
4.9K
Tonsillitis I: Introduction01:30

Tonsillitis I: Introduction

3.4K
Tonsillitis is inflammation of the tonsils, which are two lymphoid tissue masses at the back of the throat. This condition can cause discomfort and irritation in the throat.
Etiology
Three primary contributing factors have been identified.
3.4K
Tonsillitis II: Management01:26

Tonsillitis II: Management

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This lesson will focus on the different treatment options for managing tonsillitis, which typically depend on the cause and severity.
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Related Experiment Video

Updated: Apr 6, 2026

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

Published on: December 1, 2023

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[Laryngitis in childhood].

Matti Korppi, Terhi Tapiainen

    Duodecim; Laaketieteellinen Aikakauskirja
    |August 5, 2015
    PubMed
    Summary
    This summary is machine-generated.

    Parainfluenza viruses commonly cause laryngitis in children aged 0.5-3 years, presenting with a barking cough. Most cases are manageable at home, with emergency treatments including oral glucocorticoids and inhaled racemic adrenaline.

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    Area of Science:

    • Pediatrics
    • Infectious Diseases
    • Otolaryngology

    Context:

    • Laryngitis is a common pediatric respiratory illness.
    • Parainfluenza viruses are the primary etiological agents.
    • Diagnosis is primarily clinical, based on characteristic symptoms.

    Purpose:

    • To outline the clinical diagnosis and management of laryngitis in children.
    • To highlight typical symptoms, age groups, and potential differential diagnoses.
    • To discuss effective emergency treatments.

    Summary:

    • Laryngitis in children, typically aged 0.5 to 3 years, is most often caused by parainfluenza viruses.
    • Key symptoms include a dry, barking cough, inspiratory difficulty, and wheezing.
    • While most cases are managed at home, structural anomalies in infants require consideration. Oral glucocorticoids and inhaled racemic adrenaline are effective emergency interventions.

    Impact:

    • Provides guidance for clinicians on diagnosing and managing pediatric laryngitis.
    • Emphasizes the importance of considering underlying conditions in infants.
    • Informs emergency treatment protocols for severe cases.