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Gravity and Biology

Author: Emily Holton, NASA Ames

Date: 4/27/00

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Gravity and Biology

Acknowledgments

Outline

What is Gravity

F=ma

Gravitational Force

When Gravity Changes

Changes in Gravity - Cells

Cells

E. Coli Growth

Renal Cells

Suspension Cultures

Attached Cells

Bone Cells

Early Findings

Forc Coupling

Summary-Cells

Changes in Gravity - Plants

Plants

Above Ground

Lessons Learned

Below Ground

Lessons Learned

Summary - Plants

Changes in Gravity - Vertebrate Development

Vertebrate Development

Amphibians

Amphibians

Quail

Rats

Summary - Vertabrate Development

Changes in Gravity - Adult Humans

Adult Humans

Fluid/Cardiovascular

Neurovestibular

Musculoskeletal

Spaceflight Changes

Conclusions - All Species

Gravity Role in Evolution

Gravity Shapes Life!

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