Dr. Arielle Dunowder (AD) is a 33 year old Harvard graduate and has been invited to live in a space station for seven months. Arielle is in peak physical condition and is concerned that her bones and muscles may become weaker while in space.
a. Explain why Arielle’s bones may weaken while in space and outline what could she do to prevent this from occurring.
b. Explain why Arielle’s muscle strength would deteriorate in space.
c. Describe the impact this may have on the process of muscle contraction on a cellular level.
Mrs. Stephanie Justle (SJ) is a 23 year old volunteer rural firefighter who decided to became a vegan three months ago (she does not consume any dairy products). She has recently complained of muscle cramps.
a) Explain why Stephanie is experiencing these symptoms in the context of her dietary choices and the musculo-skeletal system.
b) Describe how this may impact on the process of muscle contraction on a cellular level.
c) Outline the possible long-term risks associated with vegan dietary choices.
d) Describe whether muscle cramps would be a common side effect of vegan diets and why.