PHGY 214 Lecture Notes - Lecture 1: Partial Pressure, Bronchiole, External Intercostal Muscles
12 May 2016
School
Department
Course
Professor
Document Summary
Introduction: list the steps involved in the movement of o2 from room air to tissues and. Ventilation or gas exchange between the atmosphere and air sacs in the lungs through convection. Exchange of o2 and co2 between air in the alveoli and the blood in the pulmonary capillaries through diffusion. Transport of o2 and co2 by the blood between the lungs and the tissue (through the pulmonary and systemic system) Exchange of o2 and co2 between the blood in the systemic capillaries and the tissues through diffusion: state at least two major differences between convection and diffusion. Convection occurs during the gas exchange between the atmosphere and the air sacs (alveoli) in the lungs. Is the movement of molecules down a net pressure gradient (bulk flow) Diffusion occurs during the exchange of o2 and co2 between the alveoli and the pulmonary capillaries.
