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Related Concept Videos

Pulmonary Cycle: Exhalation01:17

Pulmonary Cycle: Exhalation

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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...
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Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics01:23

Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics

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Respiratory symptoms, such as congestion and cough, commonly accompany respiratory tract conditions. Various medications, such as antitussives, expectorants, and mucolytics, play crucial roles in providing relief.
Antitussives include codeine, dextromethorphan (Robitussin), and benzonatate (Tessalon). Codeine and dextromethorphan exert their effects centrally by suppressing the cough reflex center in the medulla.  Benzonatate operates peripherally within the respiratory tract by...
241
Chronic Obstructive Pulmonary Disease01:22

Chronic Obstructive Pulmonary Disease

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COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
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Trachea01:22

Trachea

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The trachea, commonly known as the windpipe, is a vital part of the human respiratory system. It serves as a passageway for air to travel between the larynx and the bronchi, allowing oxygen to reach the lungs. Let's explore its anatomical features, dimensions, layers of the tracheal wall, associated muscles, and the functions of its parts.
Anatomical Features:
Location: About half of the trachea is situated in the neck, anterior to the esophagus, and extends from the larynx (at the level of...
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Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.01:25

Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.

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Understanding the variety of primary symptoms and systemic complications that characterize chronic obstructive pulmonary disease (COPD) is crucial for healthcare professionals.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
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Common Respiratory Disorders01:31

Common Respiratory Disorders

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Respiratory disorders, a prevalent health concern globally, are generally divided into two primary categories: upper and lower respiratory tract disorders. The categorization is based on the area of the respiratory system they affect.
Upper respiratory disorders impact the airways above the vocal cords, encompassing areas like the nose, sinuses, and throat. Various conditions fall under this category, including the common cold and allergic rhinitis. These disorders can stem from several causes,...
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Related Experiment Video

Updated: Jun 12, 2025

Methods for Detecting Cough and Airway Inflammation in Mice
04:33

Methods for Detecting Cough and Airway Inflammation in Mice

Published on: August 2, 2024

577

[Coughing].

Leonie A Kooistra1, Jan Willem K van den Berg1,2, Herbert van den Berge3

  • 1Isala, afd. Hoestpoli, Zwolle.

Nederlands Tijdschrift Voor Geneeskunde
|September 18, 2024
PubMed
Summary

Acute cough, often from viral infections, rarely needs medical care and doesn't require different treatments for wet or dry symptoms. Seek medical help for severe symptoms like coughing blood or high fever.

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Area of Science:

  • Respiratory Medicine
  • Clinical Practice Guidelines

Context:

  • Cough significantly impacts daily life, affecting sleep and social activities.
  • Acute cough is predominantly viral and self-limiting.

Purpose:

  • To clarify the management of acute cough.
  • To differentiate between common cough and conditions requiring urgent medical attention.

Summary:

  • Viral respiratory infections are the primary cause of acute cough.
  • Red flag symptoms such as hemoptysis, high fever, or severe illness necessitate medical evaluation.
  • Distinguishing between wet and dry cough is unnecessary for determining etiology or treatment approach.

Impact:

  • Reduces unnecessary medical consultations for common cough.
  • Promotes appropriate recognition of serious underlying conditions.
  • Simplifies cough management strategies for healthcare providers and patients.