Case Study 4 Roles for Calcium Blood calcium homeostasis and

Last updated: 9/23/2023

Case Study 4 Roles for Calcium Blood calcium homeostasis and bone density Part A Markus has a vitamin D3 deficiency How might this affect Markus s blood calcium levels How might this affect Markus s bone density Explain Part B Markus s doctor performs a blood test The test results suggest that Markus has normal levels of calcium in is his blood despite his vitamin D3 deficiency What might account for Markus s normal blood calcium levels What does this suggest about Markus s bone density Part C Calcium is required for strong bones Yet when blood calcium levels fall we quickly remove calcium from bone matrix Thinking ahead to muscle contraction and neurophysiology why are we willing to sacrifice bone density to maintain blood calcium levels Hint Your answer should discuss why calcium is necessary for muscle function and neural communication