Which of the following represents a long-term effect of space travel on the skeletal system?
Understand the Problem
The question is asking about the long-term effects of space travel on the skeletal system, specifically how bone density is affected. It presents four options, and we need to choose the one that accurately describes the impact of the space environment (particularly the lack of gravity) on bones over an extended period.
Answer
Bone loss, leading to increased fracture risk and premature osteoporosis.
A long-term effect of space travel on the skeletal system is bone loss, which can lead to increased risk of fractures and premature osteoporosis.
Answer for screen readers
A long-term effect of space travel on the skeletal system is bone loss, which can lead to increased risk of fractures and premature osteoporosis.
More Information
Astronauts can lose 1-2% of bone mass per month in space. The bone loss can be so severe that it raises the likelihood for irreversible changes.
Tips
It is important to differentiate between short-term and long-term effects. While some effects might be immediate, the focus here is on the lasting impact on the skeletal system.
Sources
- Risk of Spaceflight-Induced Bone Changes - NASA - nasa.gov
- The Effect of Space Travel on Bone Metabolism - pmc.ncbi.nlm.nih.gov
- Incomplete recovery of bone strength and trabecular ... - Nature - nature.com
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