MS-0986

A 32-year-old female patient visits your clinic complaining of fatigue and unexplained weight gain. She mentions feeling extremely sensitive to cold temperatures. You suspect hypothyroidism and decide to conduct a test on her serum levels of thyroid stimulating hormone (TSH) and free thyroxine (T4). Which of the following hormones is not secreted from the anterior pituitary gland, where TSH is released?