A space medicine quiz

Do you have what it takes to study space medicine? Some Jeopardy-style questions to test your knowledge.

1. While travelling in space, these can sometimes stiffen. 2. Space flight osteopenia is a term for the deterioration of these, caused by exposure to microgravity in space. 3. Astronauts maintain muscle mass by doing this for two hours each day. 4. Orthostatic hypotension refers to low this, experienced by some astronauts after they return to earth. 5. The backs of these can flatten after astronauts spend more than six months in space.

Answers: 1. What are blood vessels? 2. What are bones? 3. What is working out? 4. What is blood pressure? 5. What are eyeballs?