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Biology 350: Biology & Space Exploration
PPT Slide
Cardiopulmonary System
Some Basics
What about the amount we breathe?
Variations on Breathing Mechanics: Earth
HDT Simulations
Lung volume changes in microgravity
How about the Respiratory Filter Function? (vs Particles & Vapors)
Respiratory Defenses from Particles & Vapors
Breathing on Earth:Ventilatory ìmismatchî
Breathing in Microgravity
So, weíve seen respiratory changes, but not major ones. Whatís left?
Some Unit Conversions
The Basic Balancing Act
Cabin - Total Pressures & pO2
Cabin - Other Key Gases
Sub-Objectives: Atmospheric Design
Safe, Clean Air? In Space:
Some Early Examples
More Recent Examples
Potential Sources of Chemical Contamination
Spacecraft Maximum Allowable Concentrations (SMACs)
Shuttle Air Revitalization System (ARS)
Monitoring Potentially Toxic Contaminates in Spacecraft Air
Designing Atmospheres
Risks: Hypoxia & Hyperoxia
Trade-Offs: Pressure & pO2
Pros of Lowering Pressure
Pros of Sea-Level Pressures
Trade-offs with EVA?
DCS Balancing Act
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