In this article we will discuss about:- 1. Definition of Respiratory Dead Space 2. Types of Respiratory Dead Space 3. Measurement. Definition of Respiratory Dead Space: The respiratory tract is so designed that during inspiration its upper part upto the level of terminal bronchiole is filled with atmospheric air. The first part of the expired air, therefore, is also atmospheric [...]
In this article we will discuss about:- 1. Definition of Alveolar Air 2. Method of Collecting Alveolar Air 3. Composition 4. Partial Pressure of Gases 5. Tension of Gases 6. Method of Measurement 7. Effects 8. Factors 9. Alveolar PO2 and Venous Admixture. Definition of Alveolar Air: Alveolar air represents the air located in the respiratory part of the lungs [...]
In this article we will discuss about:- 1. Meaning of Diffusion 2. Factors Controlling Diffusion 3. Diffusing Capacity for O2 and CO2. Meaning of Diffusion: Diffusion means movement of a substance from an area of high concentration to an area of low concentration. In the present context the diffusion of O2 from alveoli to pulmonary capillaries and of CO2 in [...]