6. what do you think is the underlying cause of all these symptoms in barbara?
what is wrong with her?

7. some patients with thyroid or thyroid hormone problems develop a goiter. list
two possible causes of this goiter.

8. barbara does not have a goiter at the moment. if her condition continues unchecked will
she develop one?

9. extrapolate the knowledge you have of the hypothalamic-anterior pituitary-thyroid
negative feedback loop to explain how an anabolic steroid (testosterone) abuse would
lead to testicular atrophy (breakdown).