You are presented with the question "What stimulates the pituitary gland in order to maintain structural integrity of the thyroid?" and the following answer choices: 
- TRH
 - Urea
 - CO 2
 - PDAs
 - HPV
 - SO2
 - mL
 - p53

Now knowing that tRH stimulates the pituitary gland to produce thyroid-stimulating hormone, or TSH and another function of TSH is to maintain the structural integrity of the thyroid gland, choose the best answer.


 

 TRH        