Lungs Articles

Lung Volumes and Capacities

By Carolyn Kisner PT, MS and Lynn Allen Colby PT, MS on January 28th 2009

Pulmonary function tests that measure lung volumes and capacities are performed to evaluate the mechanical function of the lungs. Lung volumes and capacities are related to a person’s age, weight, sex, and body position and are altered by disease. Two or more lung volumes, when combined, are described as a capacity. A basic understanding of […]

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Filed Under: Jeff, Physical Therapy
Tags: Capacities, Lungs, Volumes

Summary Function of the Upper and Lower Respiratory Tracts

By Carolyn Kisner PT, MS and Lynn Allen Colby PT, MS on January 28th 2009

The upper and lower respiratory tracts, as a unit, serve the following functions. They:
• Conduct air to and from the alveolar system for gas exchange
• Assist with humidification and trap small particles to clean the air with the mucosal lining
• Warm the air by the vascular supply
• Move mucus upward with the cilia
• Elicit the […]

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Filed Under: Jeff, Physical Therapy
Tags: , Function, Lungs, Pleurae

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