McMaster University

Demystifying Medicine
Seminar Series


Pulmonary ventilation is the act of breathing, which can be described as the movement of air into and out of the lungs. The major mechanisms that drive pulmonary ventilation are

atmospheric pressure (Patm); the air pressure within the alveoli, called alveolar pressure (Palv); and the pressure within the pleural cavity, called intrapleural pressure (Pip).

Anatomy and Physiology, © 1999 - 2016, Rice University

Action of Breathing — Part 1: Mechanisms

Video about breathing mechanisms

This videos provides an overview of the muscles involved in breathing and their associated mechanisms.

[Click to view video about breathing mechanisms]

Action of Breathing — Part 2:

Breathing volume video

This video describes how the volume of air that enters and exits our lungs can be monitored by a spirometer.

[Click to view breathing volume video]

Dirty Air We Breathe

Breathing dirty air video

These two videos provide an overview of occupational lung disorders, effects of asbestos on health, legislative policies for controlling air pollution in various countries and Canadian efforts to improve air quality.

[Click to view video about breathing dirty air]

Oxygen and Carbon Dioxide Dissociation Curve

Oxygen and carbon dioxide dissociation curve video

This video provides a brief understanding on how to read and interpret oxygen and carbon dioxide dissociation curves.

[Click to view video about oxygen and carbon dioxide dissociation curve]

Project Earth Breathes: The Greek Philosophers

Project earth breathes video

This video explores the evolution of the theory of breathing starting from the contributions of Hippocrates, Galen, Vesalius, Harvey and Lower.

[Click to view video about project earth breathes]

Effect of High Altitudes on

High altitude breathing video

This video explores what happens to your body when you climb to high altitudes including hyperventilation and metabolic compensation.

[Click to view video about breathing at high altitude]

Control of Breathing

Control of breathing video

These two videos discuss experiments that help to understand how our bodies regulate breathing.

[Click to view control of breathing video]


Hemoglobin video

This video presents a brief overview of how hemoglobin was discovered, its structure and function as well as understanding the role of hemoglobin in breathing.

[Click to view hemoglobin video]

How the Body Works: The Chemistry of Our Internal Environment

Internal environment video

This video provides an introduction to the acid-base chemistry that takes place in the body.

[Click to view internal environment video]

How the Body Works: Carbon Dioxide and Its Role in Our Body

Control role of carbon dioxide video

This video provides an introduction to the role of carbon dioxide in the body.

[Click to view video about role of carbon dioxidein our body]

Respiratory Distress Syndrome

Respiratory distress syndrome video

This video provides an understanding of respiratory distress syndrome (RDS) in newborns, and it will outline the risks, symptoms, and treatment options.

[Click to view video about RDS]

Discovery of Surfactant

Surfactant video

This video explores the role key scientists played in the initiation of surfactant discovery.

[Click to view video about discovery of surfactant]

Developments in Understanding of Cardiopulmonary Anatomy

Cardiopulmonary anatomy video

This video explores the history and development of respiratory medicine, focusing on the discoveries that shaped our understanding of the anatomy and physiology of breathing.

[Click to view video about cardiopulmonary anatomy]

Day of Your Pulmonary Function Procedure

Pulmonary function test video

This video looks at the pulmonary function test that is used to measure how well lungs take in and release air.

[Click to view video about pulmonary function test]

Breathing at Depth

Breathing underwater video

This video explores the science behind the ability and limitations of human physiology underwater.

[Click to view video about physiology of breathing underwater]

Diving Devices: For Safe Underwater Adventures

Diving devices video

This video explores the problems with deep water diving and the associated physiological ramifications.

[Click to view video about diving devices]

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