The Physiological Effects of Spaceflight

5829 WordsJan 11, 201823 Pages
ACKNOWLEDGEMENTS ABSTRACT The fascination with space is as old, if not older, than the human species itself. Humans have developed the capacity to begin to explore this realm in the twentieth century which represents a flash in the course of human evolution. Furthermore, through the process of natural selection, homo sapiens have evolved under a specific set of physiological constraints. These constraints have shaped the process of human development however they are not present in the same composition in space. Therefore there are many implications for the physical aspects of space travel. There will need to be many developments in the science of physiology in this frontier before long duration flights, such as a trip to Mars, becomes feasible. This analysis will provide a literature review of some of the issues regarding human physiology in this realm as well as one of the more fascinating microorganisms who have shown to be able to withstand some of the adverse effects that space can inflict upon them. TABLE OF CONTENTS ACKNOWLEDGEMENTS 2 ABSTRACT 3 TABLE OF CONTENTS 4 1. THE PHYSIOLOGICAL EFFECTS OF SPACE FLIGHT 5 1.1 MICROGRAVITY OF HUMAN PHYSIOLOGY 6 1.2 TEMPERATURE EXTREMES & ACOUSTIC NOISE 12 2. ACCLIMATION DURING FLIGHT 14 2.1 PHYSIOLOGICAL EFFECTS OF SPACE TRAVEL 14 2.2 GENES AND PROTEOMICS 19 3. MICRORGANISMS 19 4.1 TARDIGRADES OVERVIEW 19 4.2 CRYPTOBIOSIS 26 4.3 ENVIRONMENTAL STRESS REDUCTION 27 Works Cited 31 Figure 1 - Calcaneal Mineral Loss
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