Explain why the pituitary gland is considered the master gland. Give some examples that support the terminology. Based on the principle of the feedback loop, if a client’s T3 and T4 hormone levels are...

Explain why the pituitary gland is considered the master gland. Give some examples that support the terminology.

Based on the principle of the feedback loop, if a client’s T3 and T4 hormone levels are low, what hormone level(s) is/(are) most likely elevated?