Human physiology in space

Vernikos, J.

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NASA NTRS · 20040173092

Human physiology in space

Vernikos, J.

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Abstract

The universality of gravity (1 g) in our daily lives makes it difficult to appreciate its importance in morphology and physiology. Bone and muscle support systems were created, cellular pumps developed, neurons organised and receptors and transducers of gravitational force to biologically relevant signals evolved under 1g gravity. Spaceflight provides the only microgravity environment where systematic experimentation can expand our basic understanding of gravitational physiology and perhaps provide new insights into normal physiology and disease processes. These include the surprising extent of our body's dependence on perceptual information, and understanding the effect and importance of forces generated within the body's weightbearing structures such as muscle and bones. Beyond this exciting prospect is the importance of this work towards opening the solar system for human exploration. Although both appear promising, we are only just beginning to taste what lies ahead.

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NASA Center HQS NASA Discipline General Space Life Sciences Review Review, Tutorial Weightlessness Space Flight Astronauts Models, Biological Physiology Cardiovascular Physiology Bone and Bones/physiology Circadian Rhythm Autonomic Nervous System/physiology Hydrostatic Pressure Human Muscle, Skeletal/physiology Respiratory Physiology

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Vernikos, J.. 1996-12-01. Human physiology in space. https://ntrs.nasa.gov/citations/20040173092

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